peg.gd

http://peg.gd/ - use this website to quickly create web pages

Free Text Books

following link provides you free text books http://blog.curriki.org/2010/08/31/10-sources-for-free-textbooks-online/

screenr

http://screenr.com/ - Instant screencast for twitter

Gadget Blog

http://www.ubergizmo.com/ - excellent site to know about gadgets