[sem] Forum Topics

hi , i am seeing people write to do SEO , SEM and PPC etc , what exactly is SEM ? I know its full form ;) but what does it do ?? is it worth for start-up as well as established websites ? thanks Marshal

Name is Ferdous Tall and Dark. I do White hat SEO & SEM for living Based on QLD Australia. East or West Google is the best. Having good fun here.