Not only does to require an account to use, but you can't even sign up. Plus it looks to be paid.

seems quite good as a bookmarking and collection creation tool with synchronisation options. Haven't looked at it that much though just surface impressions.

Excellent idea. i Love the concept. Now i can optimize my research process highlighting the information i need as i browse between multiple pages.

Interesting.

I was waiting for Firefox version since the release for Chrome and finally it's there.
It's very fast and robust, I have a feeling it works even faster than on Chrome.
Would be nice to have email integration though.