Google now has an extension to Google Chrome where you can block domains or websites. This is a step they are taking in order to fnid a solution to the problem with "spam-sites" showing up in the search results. Google hopes to discover some patterns or ways to improve the search engine, based on the feedback the users of this extension gives. It wil be interesting to see how this not only going to affect SEO but eventually also possibly PPC (adwords)
Being able to advertise with Google is not at all complicated as new users should find the AdWords pay-per-click platform fairly easy to use. (Advertising with Google is not at all complicated as new users should find the AdWords platform fairly easy to use.
An interesting piece abuot PPC versus SEO. I think it is getting more and more vital to consider both options when you are thinking about PPC and SEO. They should never be seperate but a part of a total strategy for any company.