If you know how to blog
If you know how to blog, you can make some extra money from home on your free time by writing about a variety of topics for SEO firms in your area that need people to do writing that they can use to promote their web sites and the web sites of their clients. To find an SEO company in your area that needs people who know how to blog, just head to one of the local bulletin board web sites, look in the job section, and search for "SEO" or "blog writer job", and you should get some helpful info back in no time!