1000 dofollow social bookmarks

I have 100 sites and need 1000 social bookmarks (10 per site). Requirements: - dofollow links only - link should be visible for search engines (don't need register to view; not disallowed by [login to view URL] or meta noindex) - Google PR of site's homepage (not the page with the link) should be 2 or more - minimum 200 different domains Please read the requirements carefully because won't pay for the links that don't meet these requirements. $0.1 per link (if you can do job cheaper - please note it in PM)