Leaderboard not showing URL's

Why?

[DingoNY]

Does anyone know why G doesn't include the URL in the display for their 728x90 Leaderboard and their 468x60 banner?

All others seem to show it.

[weldonj]

I've noticed in many of my adsense text ads the URL of the site being advertised (the text at the bottom of the ad) is not showing all the time.

I like seeing this information and so do my visitors to kind of check and see if the site is relevant. However, it only shows up some of the time.

Anyone else experiencing this as well?

[Jenstar]

This has been ongoing since it first appeared in March:
[webmasterworld.com...]

You can always right click or click the "Ads by google" link to get the URLs.