19.+WEB+2.0+TOOLS

__**SOCIAL BOOKMARKING**__
 * **[|Introduction to Diigo]**
 * **[|What can you do with Diigo?]**
 * **[|The concept of social bookmarking]**
 * **[|DIIGO Introduction]**


 * __WIKIS AT WIKISPACES__ Seminar on wiki**