Jenstar - 8:16 pm on Apr 25, 2005 (gmt 0)

A site-targeted ad will take up an entire ad unit (similar to the PSA style ads, I believe), instead of a multiple ads per ad unit that occurs with most ad units.

You can also block any of these site-targeted ads by adding the URL to your competitive URL filter. But keep in mind you will not only filter out the site targeted ads from the URL, but also the regular content targeted ones too.