Some tools for AR

1) http://sites.google.com/site/augmentedrealitytestingsite/  (Hatsune Miku's creators)
2) Action Script : http://www.adobe.com/devnet/actionscript.html (the rotating head :http://www.youtube.com/watch?v=jKIv3Pt6zjI&lcor=1&email=comment_reply_received&lc=fM9HkDd1TwTPkP83d-K9xHzJ3I-WEn25uX4T5rGmv48&lch=email_reply&feature=email)

AR Guru from MIT and some of his projects that I have most

http://www.pranavmistry.com/ (guru's web)
1) http://www.pranavmistry.com/projects/sixthsense/
2) http://www.pranavmistry.com/projects/quickies/
3) SPARSH (copy and paste using hands)
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Some publications :
1) http://delivery.acm.org/10.1145/1960000/1958946/p689-mistry.pdf?ip=128.40.128.186&acc=ACTIVE%20SERVICE&CFID=81606613&CFTOKEN=64781228&__acm__=1336599906_78744d82c9a863b6aa8af2d648e4922d

publications for Milk firm health checkup scheduler
http://www.pranavmistry.com/research/publications/PranavMistry_vet_IDC2005.pdf
http://www.pranavmistry.com/ithink/pranav_technology.pdf
(all can be seen on his web - this is just my note to check out the projects that i am interested in )

AR in social media and business card

1) http://www.forbes.com/sites/insead/2012/02/07/move-over-social-media-here-comes-augmented-reality/
2) http://www.bitrebels.com/social/augmented-reality-comes-to-social-networking/  (very good)
3) http://www.guardian.co.uk/technology/2010/mar/21/augmented-reality-iphone-advertising (business card)
4)http://technorati.com/social-media/article/augmented-reality-meets-location-based-social/

face recognition API

http://developers.face.com/docs/  (something like detective program) you can find someone's facebook or twitter according to that API

AR inspirations

1) http://code.google.com/p/andar/  (from AR tags)
2)http://virtual-graffiti.appspot.com/
3)http://code.google.com/p/mobilebombsquad/

AR companies

1) http://www.bbc.co.uk/news/technology-13558137 Aurasma , UK
2) Blippar , UK
3) http://technode.com/2011/05/06/china-is-catching-up-with-augmented-reality/ (everywhere)

4) mobile monday http://technode.com/2011/04/10/announce-the-first-augmented-reality-demo-event-in-china/
5) PEREY research and consulting
6)

AR apps

http://onebiginternet.com/2011/01/11-most-useful-augmented-reality-apps-for-iphone-and-android/
http://onebiginternet.com/2012/02/how-augmented-reality-will-change-the-future-of-internet-browsing/

My current Interest - AR

http://mobile.tutsplus.com/tutorials/android/android_augmented-reality/

And to research : cross platform?
http://en.wikipedia.org/wiki/Cross-platform

augmented reality try it out :)

To inspire:http://www.youtube.com/watch?v=jU6PcBS1pWw
http://www.tinkernut.com/forum/video-tutorial-help/how-to-create-augmented-reality/