When I'm visiting a new city I'd like to know which coffee shops have the best vibes, great coffee and are good for hunkering down and having a good hack. Yelp will tell you where the Starbucks is and Foursquare will tell you where your friend's have been - but did they like it and was it a grab in go place or a hack place? Plus, what about the people I don't follow on Foursquare or who can't check-in when in other countries?
This website is hooked up to this Google Spreadsheet, which I've shared with friends. They add their favorite spots and every visitor to the site gets the latest data.
Besides being a list I've wanted to have, it's a fantastic (or I think so) way of using sheetsee.js, which is a little JavaScript library I've been working on. Sheetsee.js helps you hook a website to a Google spreadsheet that you then use to create or collaborate on data.