Here's some rules about the banner:
* Must Be Exactly 781x76 In Size
* Must Be Clear/White Background With No Border
* Must Be Text Style - Blue, Black And Red Text Allowed - No Blinking, Flashing or Twirling
* Must Be Under 10k in Size
In general - keep it as professional looking as possible. It needs to look like a text link - not a banner.
Skills: adobe photoshop, banner ads, graphic design