londrum - 9:34 am on May 8, 2011 (gmt 0)
A year or two ago, I read that the faded blue links tended to get the best CTR (at least when used on a white background)
i cant see them adopting light blue just to get a higher CTR on the SERPs. why would they? if anything, they want a lower CTR on the serps.
the last thing google wants is for people to leave their site in one click. everything they've done in the last few years is designed to keep people within their own properties.