I’ve written about my very positive experiences with both InteractiveVoices.com and Voice123.com a number of times. As far as I’m concerned, the $200 per year I pay to each of these services for a premium membership is some of the best money I spend.
So, you should know that right now, Voice123.com has a deal going that they will provide you with some Search Engine Optimization consulting, free, if you sign up for (or renew if you already have) a premium membership.