If you have a sharing habit, Shareaholic is an addon you need to try. It’s a lot easier than going through a twelve step program to cure your addiction.

URL masking is not required with regular links but if you are linking to a download page which you want to hide from the crawlers, URL masking services like Hides.at might help.

Tr.im has permanently disabled shortening URLs through their web interface, URL shortening is only available through the Tr.im API right now.

One of my favorite Twitter tool TweetDeck’s blog just threw in a surprise news at us. It looks like Bit.ly is now using custom domains for Bit.ly Pro accounts while shortening the URLs. So if you try to shorten a URL for TechCrunch you will end up getting a branded URL for tcrc.ch.