pontifex - 5:36 pm on May 16, 2007 (gmt 0) P!
On a lot of german sites is an ad running, with an animated border of white stars scrolling on red... about 15 pixels width/height around the ad! It could also be a banner itself and it really stands out. Red/white movments just suck your eyes in! There is for sure a thin red line between nice and evil and these borders open pandoras box! In googles case I would not allow them... or at least define clear rules: borders in the sites style (like articles have the same border) etc. = not an easy topic, IMHO!