Using PLAs to Improve, Not Encroach, on Search Engine Marketing

http://www2.webmasterradio.fm/using-plas-to-enhance-not-encroach-on-sem.html
Using PLAs to Improve, Not Encroach, on Search Engine Marketing
Using PLAs to Improve, Not Encroach, on SEM ... By taking a much more sophisticated method, you could make PLAs benefit your SEM initiatives. The first thing to realize is that PLAs have actually relocated from being a feeds-based system that you could optimize to an optimization-based system that leverages a feed.