Nice idea but it seems the ads are links to applications inside 1Mobile Market.. I don't get to see the host name. I will just try to not use the market that much. Thank you for the help.

Edit: The 1mobile market cache is here: /sdcard/Android/data/me.onemobile.android/cache/

In the folder /sdcard/Android/data/me.onemobile.android/cache/images you will find many image files starting with "i" and a few starting with "-" or numbers (on my side I had 7).

From the 7 files one was html type and I left it as is, but the other 6 image files I replaced with 0 length files.

EDIT: After some time the files are replaced by the store... So the ADS will come back.