I have a question about link popularity. If I advertise at some contextual program like google adwords, bannerboxes, bidclix, clicksor, will my PageRank increase when my text display from high PR page?

Probably not, unless it's a real text link. The codes for adsense is javascript and i suspect the same for other ones as well.

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So if my link is at the description part, don't my page link popularity increase?

absolutely not, they are javascript based you will get no benefit from such links or anything run through a redirect script for tracking

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What about the mith about google comprehending and following javascript?

Any truth at all to it?

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