Categories of Web 2.0 technologies

The following categories of Web 2.0 technologies are covered in this tutorial:

• Multimedia sharing - these are services that facilitate the storage and sharing of multimedia content, such as photos and videos. See tips on YouTube, and Flickr
• Social networking sites - these are websites that help people meet other people who share professional or leisure interests, and help people share information about themselves. See tips on LinkedIn, Facebook, MySpace and Bebo and Second Life
• Wikis - a wiki is a page or website that allows anyone who accesses it to contribute or modify content. The best known wiki is Wikipedia, the online encyclopedia. See tip on Wikipedia
  
• Blogs - a blog is a website with regular entries in reverse date order. The entries usually include commentary or news on a particular subject, or are personal diary entries. See tips on blogging, online discussions and Twitter
• Social bookmarking - this is a service that allows web bookmarks to be stored in one place and shared with other users. See tip on social bookmarking
  
• Online donation services - these are tools that enable you to raise money online. See tips on encouraging donations online and comparing online donation services