webdevfv - 8:16 am on Oct 26, 2012 (gmt 0)
PLAs currently do well as they immediately attract the user because they are in a sea of text links.
Now, roll on to a time not far off, and the whole google page is a sea of PLAs. A slow loading yahoo type of search portal anyone? Exactly what google wasn't when it first aired, and one of the major reasons why it did so well.
Funny how they are opening the gap, to a fast loading, clean user interface, deep mining but remaining accurate search engine.
What goes round, comes round.