A free tool for tracking how much you like or dislike different things.
This site got it's start from Thoughtworks Technology Radar and I used it to track my technology assessments and usage. However the more I used it the more I got ideas for other things I could categorize with this same concept.
Your opinion of things can and should change over time. Keep track of how your interests and opinions change over time. Your radar history lets you and others see how your opinion has changed.
Your radar can be kept private or published to be visible to anyone on the internet. Sharing it lets others see what you're interested in, and how your opinions and how they have evolved.
As other people enter in their own evaluations of things you'll be able to see what they have learned about the same things you are you are interested in.
This radar concept can be applied to other things also. Use your imagination and create your own radars to share your opinions.