Google AdWords has launched “Starter Accounts”, a simple interface setup to meant to attract new advertisers who are overwhelmed with the current sign up process. Starter Edition accounts are automatically opted in content and search networks.
Your ad may also appear on the search and content sites and products in the Google Network. The Google Network is made up of sites and products who partner with Google to publish targeted AdWords ads via their site or product. On search sites in the Google Network, your ads could appear alongside or above search results, or as a part of a results page found through a site’s directory.
While these accounts are small (one ad with multiple keywords), advertisers can then graduate to full-fledged Standard account, meaning publishers could slowly see an influx of new advertisers into the content network.
Forum discussion at Search Engine Watch.