| 1 | http://www.slideshare.net/ |
| 2 | http://www.slideboom.com/ |
| 3 | http://www.scribd.com/ |
| 4 | http://www.slidesnack.com |
| 5 | http://issuu.com/ |
| 6 | http://en.calameo.com |
| 7 | http://www.edocr.com/ |
| 8 | https://www.box.com |
| 9 | http://www.esnips.com/ |
| 10 | http://www.mediafire.com |
| 11 | http://pdfcast.org |
| 12 | http://free.yudu.com |
| 13 | http://www.pdfmoz.com/ |
| 14 | http://www.viewdocsonline.com |
| 15 | http://www.authorstream.com/ |
| 16 | http://www.slidelive.com/ |
| 17 | http://www.slideserve.com/ |
| 18 | http://www.myplick.com/ |
| 19 | http://www.doctstoc.com/ |
| 20 | http://wepapers.com/ |
| 21 | http://docshare.com/ |
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