980526bookmaker

http://delicioous.com/
You can see many text for the special topic
the route another people have been searching for the same topic
like social bookmarking

O'Relly
http://teachertube.com/


http://scyuen.wordpress.com/2008/02/13/

http://www.slideshare.net/


SlideShare is the world's largest community for sharing presentations on the web. You can
upload your presentations (ppt, pptx, pdf, pps, ppsx, pot, potx, odp, keynote) and share with others
find/download interesting presentations
embed them into blogs or websites
create a slidecast by linking your slides with audio And it's completely free.

you can edit your text to .PDF (by PDF creator)
the limit is 100MB

slideshower you must sign in account

when somebody drop in the same concept at community(group and author)
you will accept the information about the topic
slideshower can interface with youtube
slidecast can interface with podcast
student can edit command
every slider haveseperate URL Per slideshower

my Widgets can allocate your presentation toghter


3. http://www.screentoaster.com/

you can record the real voice about screen capture