There are so many awesome logos out there, I had trouble picking my favorites and only choosing two... so I compromised and picked three!
1) Sun Microsystems (bought out in 2010 by Oracle Corporation). Their logo was "sun" interlaced in four different directions:
2) Goodwill. Their logo features a "g" that is a half-smiley face!
3) Resource Management Concepts, Inc. This is the company I worked for last summer. It's a medium-sized government contracting company that works with environmental safety and information technology. Their logo features a box that is unfolding because to them, "thinking outside the box" just isn't enough! Haha.
Apparently I really like blue logos.