---- OneBox to buy flight tickets at top of search results
Receptional_Andy - 11:36 am on Apr 26, 2008 (gmt 0)
and that this too is actually cpc is given away with the redirect URLs as Andy pointed out
Not quite - it shows that the destination URLs are supplied by the sites themselves (rather than spidered by Google) and that at least one site involved is tracking this in their analytics alongside CPC traffic.
It doesn't say anything definite about why those links are there or whether payment is involved.