WordPress MU

anyone having any success with this? is it an effective way to increase traffic? i've tried a number of SEO systems with WPMu, WP and other platforms and havent really been impressed. i see that some people are running it, but does it work?

Nothing beats good ol' fashioned standards compliant code, and good content. :)

if you can handle you can try adwords, or other PPC pay per click system. adwords-adsense combination works for me. of course success is hardly rely on your site...