Lunchclub - Curated 1:1 professional connections
Coworker.com - Looking for the best coworking spaces? Read real reviews, get prices, see photos, view maps and more. Find your perfect coworking space in 100+ countries!
Serendipity - Serendipity is a PHP-powered weblog engine which gives the user an easy way to maintain a blog.
Croissant - Unlock the hottest coworking spaces in your city
Lunch Roulette - Collaboration by grouping coworkers randomly for lunch.
Spacebring - The coworking space management platform in a pocket