Creates books from Twitter, enhanced your tweets with matching photos from Flickr. (tags: web2.0 webpageprinting web printing service startup sanfrancisco)
A popular messaging server. (tags: architecture library programming)
A persistent version of memcached. (tags: database programming scaling web)
Simple way to automatically restart programs that crash. (tags: programming service architecture)
Nice visualization of options when booking flights. (tags: service travel)