They are among us! Need more "proof"? Check out the tag search results for alien architecture.

Photos from Bryan Chang, gandy_, Cap’n Surly, richardr, .: Philipp Klinger :., slimmer_jimmer, and Karl Molin.

Photos from Grant Hamilton, princejaffa and kadorin.

Found in the gallery polaroid rose as curated by Lizzy Freundel.

Got mad web engineer skills? Comfortable with HTML5, CSS3 & PHP? Built any mobile apps? Want to work at Yahoo! and lead the global social bookmarking battle? You might be the perfect fit for the Delicious engineering team.

As you know, Delicious continues to lead the way in Social Bookmarking. And with some exciting new features and opportunities coming soon, we need a new teammate to join the crew and help create new experiences for our users. We’re a small team that still iterates like a start-up – we just happen to do it within a big company. This gives the Delicious team a tight family vibe but access and support from a leading global internet company.

If this sounds like something you want to be a part of, jump on careers.yahoo.com, search for ‘foosball’ (don’t ask) and look for Req# 32524.

Psst! If that sounds like too much effort, feel free to click here instead… ;)

    

Photos from elston, Trey Sullins, thelightgatherer, and Martijn Westerink.

    

    

Wonderful impressions from the Moments [in White] group.

Photos from Marlon Kowalski, Blue Perez, daniel deltour 360° ( ! ), mmarsupilami, sue.h, Miss K.B., and still. life..

NASA joins the Commons on Flickr today with three iconic sets spanning the US space agency’s 50+ year history. Their Commons account will feature photos from across the agency’s many locations and centers, chronicling the history of space and lunar missions, and the people and places of the organization.

See more photos of Greenland in Places.

Photos by ColBacco, _Zinni_, diamir8000, ranx72 and galbertss.

While attracting attention is one of the prime goals of content providers, the conversion of that attention into revenue is by no means obvious. Given that most users expect to consume web content for free, a provider with an established audience faces a dilemma. Since the introduction of advertisements or subscription fees will be construed by users as an inconvenience which may lead them to stop using the site, what should the provider do in order to maximize revenues? We address this question through the lens of adaptation theory, which states that even though a change affects a person's utility initially, as time goes on people tend to adapt and become less aware of past changes. We establish that if the likelihood of continuing to attend to the provider after an increase in inconvenience is log-concave in the magnitude of the increase, then the provider faces a tradeoff between achieving a higher revenue per user sooner and maximizing the number of users in the long term. On the other hand, if the likelihood of continuing to attend to the provider after an increase in inconvenience is log-convex, then it is always optimal for the provider to perform the increase in one step. Our formulation also provides a natural account of the penny gap phenomenon, which states that decisions about free content and products signifficantly differ from those involving strictly positive prices in that the benefits associated with free content are perceived to be higher than those with even minimal cost.

La Tomatina is a food fight festival held on the last Wednesday of August each year in the town of Buñol in the Valencia region of Spain. Tens of metric tons of over-ripe tomatoes are thrown in the streets in exactly one hour.
— Wikipedia: Tomatina

Flickr member flydime was on location and took a bunch of awesome photos documenting the event. Take a look at the rest of his work and enjoy some squishy red tomato fun in his La Tomatina set.

in english

PRESS COVERAGE

The Wild vs The Orderly: Folksonomies and Semantics (TRIPLE-I 2008)
Semantic Web Company, 4.9.2008

Citizen Science: How Smartphones Can Aid Scientific Research
Popular Mechanics Magazine, March 2009

Tag, You’re It: Scientists Describe Collaborative Tagging Sites like Del.icio.us
N. Swaminathan, ScientificAmerican.com, 23 January 2007

Folk Wisdom for Web Sites
Bohannon, J., ScienceNOW, 23 January 2007

Europe studies the Web 2.0 Phenomenon with TAGora,
Sante J. Achille, Multilingual Search, 20 July 2006,

PUBLIC LECTURES

Fragmented mirrors
Tisselli, E., Tags and maps, round table at the “Createurs singuliers” Symposium at the Museum of Contemporary Art of Geneva, Geneva, May 27th 2008.

Collaborative collection making
C. Cattuto, panel at the Sony Intensive Science event, La Maison Rouge, Paris, October 6-10th, 2006.

in german

PRESS COVERAGE

Discovery Challenge 2009 – Die Literaturrecherche verbessern
publik Nr. 4, University of Kassel, May 2009

Nordhessen-Thema: Bücher jetzt einfacher verwalten
Hessisch Niedersächsische Allgemeine, 22.12.2008.

PUBLIC LECTURES

Jagd auf die Hommingberger Gepardenforelle Sucurreng3.texhmaschinen und Soziale Software
G. Stumme, C. Schmitz, Presentation for B Braun AG, Kassel, 19.9. 2006

in italian

PRESS COVERAGE

La strategia del tag
OggiScienza, 3rd July 2009,

Ecco come scegliamo i tag su internet. Il CNR: opportunità rivoluzionarie
Computerworld, 8th July 2009

Tagging e … problemi di testa
Innovazione, Idee, reti, business, 3rd July 2009

Tag antispam
Galileo, 3rd July 2009

Progetto italiano studia nuovo linguaggio rete: Un gruppo INFM-CNR studia lo sviluppo del
fenomeno “tagging”, che genera nuove modalità di categorizzazioni,
Corriere della Sera, 19 July 2006,

Al via un progetto di ricerca per studiare la dinamica della informazione sul web,
BUR.it – Bollettino Università & Ricerca, 18 July 2006,

Al via un progetto di ricerca per studiare la dinamica dell’informazione sul web,
Sussidiario.it.

Comportamento online, sotto c’è la matematica
Corriere dell’Università e del Lavoro, 5-18 February 2007, p. 6.

Dopo i bloggers arrivano i “taggers”: il nuovo fenomeno del web tra i nuovi punti del progetto “Tagora” del CNR
ITnews, 31 July 2006,

Dopo i bloggers arrivano i “taggers”: il nuovo fenomeno del web tra i nuovi punti del progetto “Tagora” del CNR
pc-facile.com, 2 August 2006

Tagora, studio italiano sulla folksonomy,
G. Dotta, HTML.it ,19 July 2006

Verso il web del futuro: Lo studio “Tagora” è rivolto alle dinamiche dell’informazione in Internet,
L. Frittella L., Rai.it, July 2006,

Come si spia il futuro di Internet
Gallavotti B., La Stampa, 28 March 2007

Gruppo studia linguaggio e dinamiche della rete
Broadcast&Video, n. 373, 21 July 2006, p. 12.

Tagora, lo studio del Web 2.0,
Guidolanda F., InternetNews, 24 July 2006

Internet: Dimmi come cataloghi…
Manacorda E., Galileo – Giornale di scienza e problemi globali, 4 August 2006,

Il web del futuro
Molinari C., Cached Blog, 1 August 2006,

Progetto “TAGora” sulle nuove dinamiche del web
Città della Scienza, 3 August 2006

Progetto “Tagora”: Semiotic Dynamics in on-line Social Communities,
Ricerca Italiana, 25 July 2006,

TAGora: ecco dove ci porterà il web
La Stampa Web, 31 July 2006

TAGora: esplorare le dinamiche del web
ADV News 24h, 3 August 2006

TAGora: esplorare le dinamiche del web
Amici Amici Magazine, n. 1518, 3 August 2006

">TAGora: esplorare le dinamiche del web
Jugo, 31 July 2006

TAGora: un progetto italiano verso il web semantico, Googlisti.com, 26 July 2006

Tagora, studio italiano sulla folksonomy
Webnews.it 19 July 2006

RADIO PROGRAMS

Cataloghiamo tutto
Vittorio Loreto (PHYS-SAPIENZA), Radio 24, 16th August 2008.

Il tagging
Vittorio Loreto (PHYS-SAPIENZA), Radio 24, 15th August 2009

Complessità senza complessi,
Vittorio Loreto (PHYS-SAPIENZA), Italian Radio, Rai – Radio 3 Scienza, 24th April 2008.

Interview on complexity and on-line user behaviors
Ciro Cattuto, “Formica Blu” Radio Program, November 20th, 2007.

La lingua batte dove la fisica vuole
Vittorio Loreto (PHYS-SAPIENZA), Italian Radio, Rai – Radio 3 Scienza, , 23rd October 2007.

La fisica dei sistemi complessi
Vittorio Loreto (PHYS-SAPIENZA), Italian Radio, Rai – Radio 3 Scienza, , 20th September 2007.

Le masse sagge o pecorone, a scelta.
Vittorio Loreto (PHYS-SAPIENZA), Il volo delle Oche, Radio24, 1st July 2006.

PUBLIC LECTURES

Complessità, informazione e altre storie
Vittorio Loreto (PHYS-SAPIENZA), Rome Opera Theatre, Italy, 15th May 2008.

Caffè corretto con frattali: I sistemi complessi da Internet alle galassie
Ciro Cattuto and Vittorio Loreto, lecture at the Perugia Science Festival, September 8th, 2007, Perugia (Italy).

La nascita del consenso nei sistemi complessi: l’esempio del linguaggio
V. Loreto, round table on “La Nascita del Consenso” at the Roma Opera Theatre, Roma, May 31st, 2007.

Il web come sistema complesso: la gestione collaborativa della conoscenza,
C. Cattuto, round table on “La Nascita del Consenso” at the Roma Opera Theatre, Roma, May 31st, 2007.

Apriamo la mente. Lazio, terra di scienza
C. Cattuto, La complessità nel cyberspazio, Viterbo science festival, Viterbo (Italy), May 26th, 2007.

Nicolas Maisonneuve, Matthias Stevens and Luc Steels
DIY:: HCI – A Showcase of Methods, Communities and Values for Reuse and Customization
Proceedings of the DIY for CHI workshop held on April 5, 2009 at CHI 2009, the 27th Annual CHI Conference on Human Factors in Computing Systems (April 4-9, 2009 in Boston, MA, USA) pp. 78 – 82
PDF

Franz, Thomas, Dellschaft, Klaas and Staab, Steffen
Proceedings of FIS-2008 – the Future Internet Symposium. Vienna, Austria: Springer (2008).
PDF

Abbasi, Rabeeh; Grzegorzek, Marcin and Staab, Steffen
4th International Conference on Semantic and Digital Media Technologies (SAMT 2009)
PDF

Abbasi, Rabeeh, Grzegorzek, Marcin and Staab, Steffen
PetaMedia Workshop on Implicit Human-Centered Tagging. Queen Mary University, London, UK (2008)

Abbasi, R., Chernov, S., Nejdl, W., Paiu, R. and Staab, S.
ECIR’09: Proceedings of 31st European Conference on Information Retrieval / Advances in Information Retrieval, 654–661 (2009)
PDF

Abbasi, R. and Staab, S.
HT ’09: Proceedings of the 20th ACM conference on Hypertext and hypermedia, 219–228 (2009)
PDF

Capocci, A., Baldassarri, A., Servedio, V.D.P. and Loreto, V.
HT ’09: Proceedings of the 20th ACM conference on Hypertext and hypermedia 239-244 (2009)
PDF

Baldassarri, A., Barrat, A., Capocci, A., Halpin, H., Lehner, U., Ramasco, J., Robu, V. and Taraborelli, D.
Harith Alani; Steffen Staab, Gerd Stumme, eds., Proceedings of the Dagstuhl Seminar on Social Web Communities, Dagstuhl, 2008
PDF

Pachet, F. and Roy, P.
IEEE Transactions on Audio Speech and Language Processing, 17(2):335-343 (2009)
PDF