Templates and Images

All of us in the blogger community have eventually decided to upgrade our initial template.  The new template may come from one source or another.  Today I found that several images that were original to a template and hosted by "Imageshack" now were replaced by a banner from them saying not to "hotlink" the images.  I've also seen the same thing happen with "Photobucket"  (That was pretty funny because it was an "inactive account" banner, and made it look as if the blog was closed.)

Flicker so far, has been reliable for me.  Which photo hosting services have you had trouble with and which would you recommend for photos on your blog?