Post to diigo button allows you to post your current page to diigo.com
Set-up
Make sure the "Bookmarks Toolbar" is checked under View → Toolbars.
Firefox and Safari: Drag this link: Post to diigo up to your Bookmarks Toolbar.
Internet Explorer: Right-click Post to diigo and select "Add to Favorites". A Security Alert dialogue will warn you that the link may be unsafe, click "Yes"(don't worry, it's safe!).
To post bookmarks to Diigo on iPhone, please see instruction here.
Feel free to contact us if you have any questions.