Different from SEO, SEM is focused more on advertising buys to reach potential clients via search engines. Most typically this takes the form of PPC programs like Google's AdWords or Yahoo's Sponsored Search/Overture, but can also include other methods such as utilizing paid listings in directories targeted to your market demographic.
Using PPC programs can give a new or existing website immediate placement on the first page of your target SERPs, or can help fill the first results page with your company message.
Green Voodoo can launch and manage your SEM campaign and start driving traffic to your site immediately. Minimum SEM campaign: $500 (US).