Slideshare adds are evil

I love Slideshare, I think it's a great site to put a slides deck and even a paper to share.
See here my latest:
http://www.slideshare.net/MbayeSmadja/webcentives-smadja-toluna
or
http://www.slideshare.net/MbayeSmadja/webcentives09-smadja (the paper).

However they started putting some really evil ads and I am thinking of stopping to use Slideshare completely. I cannot share a link with people that contains so ugly ads.

See what they gave me when I connected to it from Spain.

Facebook ads are evil

I really think that Facebook ads are obnoxious and very bothering. See the one below on my personal profile? They even have some that blink in big red letters.

Is this what one should expect of the rising star of the Web2.0 sites?
Is this how they are getting some $80 million a year?

Am I missing something here? Free cash on Facebook??