Social Bookmarking is a system that lets people collaboratively classify and link to web pages. Typically, these tools allow people to bookmark web pages to a server and tag them with keywords of their choosing. By moving these bookmarks to a server, they can be accessed anywhere that has internet access. More importantly, they can be viewed by anyone and, when combined with other people's bookmarks and tags, provide a new way to browse the web.
To make bookmarking easier, these applications have a bookmarklet tool which allows you to press a button on your browser.
Del.icio.us: The most popular social bookmarking site.
Ma.gnolia.com: Similar to Del.icio.us but also has groups.
eSnips: Similar in concept to Delicious and Magnolia, but eSnips allows the user to actually clip stuff from the web.
Aggregators are programs that pull in news (RSS) feeds. They can be downloaded as a stand alone program or you can use an web-based aggregator such as:
Feedburner helps you publish your RSS feeds.
Based on the concept of six degrees of separation, these sites are set up to help you advance your career by finding people you have an indirect link through your contacts.
Picasa is a free downloadable application from Google to organize, edit, and distribute your pictures.
Flickr: Store, search, sort, and share photos.
DropSend: Allows you to send files up to 1 GB and store files online.
YouSendIt: Send files up to 2 GB.
Campfire lets you set up password-protected web-based chat rooms in just seconds.
Skype lets you make free calls over the internet to anyone else who also has Skype.
Google Talk allows you talk or IM to people for free.
Trillian lets you Instant Message most people regardless of their IM platform.
Remember the Milk
37Signals has several free web applications to help you get organized and collaborate with others including
Sure you know Google, but you may not know all of the services they provide. Aside from the ones listed elsewhere on this page, some favorites are:
Gmail: Free email service with over 2 gigabytes of storage organized into handy threads.
Translate: Automated language translation tool.
News: Lists news articles broadly by topic and can be customized with particular search terms.
Sketchup: A free 3D modeling tool