Here's my website http://www.jrdtech.net I use to rank very well for 'computer repair nj' 'onsite computer repair' and a few variants like computer repair name of town but around the beginning of the year the site completely nose dived in serps, using a keyword tool it shows that I'm not showing what so ever for those keywords anymore. I try to keep up with webmaster tools and promptly fix html suggestions, all content is original from myself (maybe that's the problem? LOL) and I don't have any manual spam actions. I rank number 1 in Bing and 2 in yahoo for 'computer repair nj' but of course google is where the bread and butter is! As you can see I do try to use the phrase 'computer repair nj' especially in titles but I don't think it would be considered unnatural since it's a title not a paragraph. Maybe someone can skim my site and see if there's anything I'm doing that could the algorithm flagged. Thanks!