Extremely convenient addon, works great with stumble upon as instead of building up hundreds of bookmarks I can press one button and have a graphical representation waiting for me when I log into the spiritling site. Community seems pretty cool too.
This is very nicely done and it's incredibly convenient. It allows simple capture of content and storage on an easy to use website. So as I browse the web with firefox, I can keep track of all the cool stuff I find in a really convenient way and then share it with a great social community.