1. http://www.box.net/
2. http://www.esnips.com/
3. http://www.divshare.com/
4. http://www.4shared.com/
5. http://www.gigasize.com/
6. http://www.yudu.com/
7. http://www.calameo.com/
8. http://www.docstoc.com/
9. http://issuu.com/
10. http://www.edocr.com/
11. http://www.gazhoo.com/
12. http://bookgoo.com/
13. http://www.keepandshare.com/
14. http://docs.zoho.com/
15. https://www.gotomyfiles.com/
16. http://my.huddle.net/
17. http://www.twidox.com/
18. http://pex.webexone.com
19. http://www.docuter.com/
20. http://www.slideboom.com/
21. http://www.slideshare.net/
22. http://www.authorstream.com/
23. http://www.slidelive.com/
24. http://www.slideserve.com/
25. http://www.scribd.com/
26. http://www.myplick.com/
27. http://www.slideburner.com/
28. http://pdfcast.org/pdf/
29. http://www.re-pdf.com/
