I was tired of relying on image hosting sites, so I built my own with PHP and MySQL. I plan to add an image management feature as well, then possibly open it to other user accounts (by request only).
In case you're wondering, that's butter in the logo, because not only is "im" short for "images" but is also Irish for butter.
update 1
I added image management capabilities and multiple user account capabilities, though it's not open to the public.
update 2
I improved the graphics and iconography.