Krumlr is social bookmarking site that allows users to bookmark URLs while they tweet about them to Twitter.

Krumlr users can drag a link to their browser that will automatically copy the URL of the open page, then shorten it and append to their comment as a tweet to Twitter. In the same step Krumlr will also categorize, tag and save the “krum” to their Krumlr profile.

Krumlr’s has a follow-me, follow-you interface (similar to Twitter’s) making it easy to discover what pages other Krumstrs are bookmarking and tweeting about (TweetMarking). To see what another Krumstr is doing, simply click on their profile. To track multiple users, follow them and their “krums” will appear on your Trail Krum page.

Krumlr has thousand of tagged links that can be searched, picked up, or retweeted with a simple click. For feedback, Krumlr tracks your tweets. This includes number of clicks, where (by country IP), and time since tweet. Krumlr ranks users by activity and lists pages chronologically or by popularity. Krumlr uses Twitter OAuth so Krumstrs can share their URLs but not their passwords.