Bookmarking

Hello Everyone I need a list of working dofollow social bookmarking site. Please note that there are huge lists available on different forums / blogs for free. But they are not 100% working list. I need a 100% working list. Please bid only who already have similar working list ready. It will be easy job for them. You have to supply me the ready list within 3 days after project has been awarded. I will release escrow once I check all the sites from the list. at least 95% sites in the list should work. again sites should be dofollow. please answear: 1: How many bookmarks can you provide 100, 200, 400 etc? 2: Price 3: Time Happy Bidding :)