AmIMeYet's looks like a movie poster
Firerain's looks like a signature, not a logo
advice: a logo is text, perhaps a symbol. Not a background and etc.
Logos are suppose to be catchy and easy to remember.
Typically a logo is a text with an image, or just text, or just an image.
It was supposed to be an old '40s/'50s look. Dobut they had skydiving back then, but it's my favourite style.
it can still be grungy, but it's not a forum signature, you're designing a logo
the only ones that really look like logos are mine, Nouman's two, Chewey's, and Moo's
and they're all looking spiffy. Though chewey's is just hilarious, and Nouman's look like they belong with a collection of Web 2.0 logos. (no offense of course, they look lovely) I'm not sure where to place Mr.Moo's though. Maybe a display rack at a sporting goods store or something.