Redline, the Visual Bug Tracker Tool
My friend and I have just released an awesome new tool that hopes to help designers and developers communicate better. You can draw right on the webpage if you see any problems, then get a permanent URL you can share with your developer or team.
If you integrate with Pivotal Tracker (and soon, JIRA!), it will automatically create a bug ticket.
Sign-up for an invite at:
The bookmarklet version is free!