These sites are great for getting ideas and free downloads and project instructions!
Antique Images. Free vintage images for your projects.
The Dieline. A blog that is devoted to packaging. It may not sound like a likely place for inspiration, but it is!
Embellish Magazine. An online card magazine.
The Graphics Fairy. Free graphics for your projects (and they're excellent quality). Be sure to check out her other blogs!
How About Orange. All sorts of little projects and ideas.
Uppercase. This is a blog that goes with the magazine (which is very expensive but so gorgeous it's worth it). It's sort of geared to all things type-related, but it's so much more than that. You must check it out!