Twitter -
social networking & microblogging service Facebook - a popular
social network that connects people with friends & others Author Blog - a personal log of thoughts and comment interactions published on a webpage Flickr - online photo management & sharing
application FeedBurner - allows bloggers the ability to manage their RSS feeds & track usage of their subscribers Digg - a place for people to discover and share content from anywhere on the web Goodreads - see what friends are reading; keep track of what you've read & organize your book lists Library Thing - catalogs your books online, easily & quickly Google Alerts - email updates of the latest relevant Google results based on your choice of topic Delicious -
social bookmarking service that lets you keep, share & discover the best of the web
Facebook
applications include: to - do lists, calendars, file and link sharing, instant messaging,
social bookmarking tools (i.e. del.icio.us), RSS feed sharing (i.e. Google Reader), and even the ability to search library catalogues.