Any possibility of using your own? I know it poses some problems. Uploading them uses server space, and linking to another site allows people to use them similarly to web-bugs (if they do it right, finding out the IPs of those who viewed a certain post, of which people who replied would be a part).
On the other hand, uploading keeps you from having to check their sizes all the time (To keep people from using humungo-images)... Just a thought.
