Selected answers from the Dumb SEO Questions Facebook & G+ community.
Michael Martinez: You should target industries where you have some actual work or business experience, if they can benefit from a search engine presence. Being able to talk to a prospective client about the work they do, and who their customers are, and how their industry works is important. Otherwise, you`re burdening yourself with both learning about SEO and about someone else`s business model at the same time.Regardless of how you decide where to invest your SEO services marketing, you will benefit from creating and promoting your own Website (about any topic, not necessarily SEO) so that you can practice what you learn.
Gav Lewis: thanks Michael Martinez you make good points there
For those SEO agencies/freelancers - are there particular niches that are more suitable (IE easier) for beginners about to target clients? 
