Choosing Font for Screens

This is a great website for comparing fonts quickly:
http://www.typetester.org/


Other guides:
http://www.will-harris.com/typoscrn.htm
http://www.a3webtech.com/index.php/best-fonts-onscreen.html
http://www.design-by-izo.com/2010/06/07/8-excellent-fonts-for-screen-and-print/
http://www.quora.com/Why-do-most-websites-and-mobile-apps-use-sans-serif-fonts

!!http://www.bluetrainmobile.com/blog/choosing-fonts-for-your-mobile-website/

My own work

Last year I did a Typogrpahy module; one of the outcomes was to design a poster using 50 fonts, the fonts had to be used to write words that they would typically such as: a cursive font would be used for a wedding invitation.

Font Psychology

Research into how type chocie can influence it's perception:
http://typophile.com/node/58433
http://www.surl.org/usabilitynews/81/PersonalityofFonts.asp
http://www.robotvsrobot.com/tag/psychology-of-fonts/
http://www.graphicfetish.com/behind-the-font-face-part-1-the-psychology-of-font/
http://www.onextrapixel.com/2011/12/13/the-psychology-of-fonts/

Typography Research

Choosing type:
http://justcreativedesign.com/2007/12/04/how-to-choose-a-font/
http://www.smashingmagazine.com/2011/03/24/how-to-choose-a-typeface/
http://www.pallasweb.com/fonts.html
http://esperfonto.com/
http://desktoppub.about.com/od/fontselection/Choosing_Fonts.htm
http://webdesign.about.com/od/fonts/a/aa080204.htm