This is a place where I will post various free tools on the web one can use to become more effective.
A blog post about the top7 tools.
Piratepad ->Online real-time collaboration notepad. Based on Etherpad.
Urlai -> Analyze the style of a homepage/blog
Creately -> Create shapes and figures online
Copy -> Same as dropbox but more space. 20gb free with this link
Bit.ly -> Url shortener/customizer
Twitter -> Networking and customizing info-flow
Del.icio.us -> Saving and organizing bookmarks
Opera Unite -> Enabling anyone to set up a web-server with a few clicks
Rapidshare -> Sharing a larger file
000webhost -> Free and great web hotel with big control
Loopia -> Buying domain names cheaply and having good control
Bubbl.us -> Quick and professional creation of mind-maps
Aviary -> Light version of “photoshop” but online. Also vector editor, sound editor.
Pdfmyurl -> Make a pdf of any web-site
Guerillamail -> Whenever you need a temporary e-mail for something
Knowem -> Check your brand/company/username availability across all social websites
Getanewsletter -> Start your own newsletter
Robin Goods list -> BIG list of collaborative tools displayed in a mindmap
Slideshare -> Sharing your powerpoint presentations
Urbandictionary -> For finding slang and alternative definitions
Merriam Webster -> Dictionary with easy and quick url: m-w.com
Tyda -> Swedish-English translator
Flickr -> Photo-sharing
Thesixtyone -> Exploring new alternative music
Grooveshark -> Streamed music
Will extend this list every now and then.
Appreciate more suggestions of good tools if you have any to share?