the other day i got an email and an invite on the adsense panel to try image/rich media ads on one of my ad blocks (which also is the best performing one). the invite promised, that google's analysis showed, that up to 80% of income increase on that ad block would be possible. well, i had bad experience with display ads from google before, so i only had text ad blocks then.
but ok, after some time, try it out again.. and it was underwhelming again. image/rich media made up 20% of impressions and only 10% of earnings for one week (rich media beating static image ads as expected). really bad! and when i saw the first cheapo blinky download ads, i reverted back to 'text only' on the tested ad blocks even before my planned time scale.
i wouldn't want to spend work time to filter out the bad ads or ad networks. normally it wouldn't earn me anything more either as i expect the algorithm to deliver the best earning ads.
this is a really bad performance for image/rich media on my content websites. the reason imo is that text information most of the time beats display ads in terms of direct earnings. display ads deliver a branding opportunity, but most of the advertisers seem to only be interested in direct roi, so the money is on text ads - or on deceptive display ads. but google doesn't get it right either, see the silly invitation.
what is your experience? how is the earnings share on your websites for image/rich media ads? how many of you have them activated? are there websites, where these ads do well with a bigger impression and/or earnings share?