Could anyone can help me to find a reliable SEO firm?

[Hal Smith]

There are many out there with vast experience. Just be careful while selecting an SEO company, remember to look at their track record and get in touch with some of their clients. They can tell you how much successful the company has been doing work for them. Also, talk to the company before hiring and ask them question relating specially to your website/blog. Most good companies would first ask to take a look at your site and also some of your competitors and then accordingly devise a plan on how to proceed. One company that I've been dealing with is URLdreamer(dot)com. Have had great success with them. Check them and others out over Google and then according to your own needs, choose the best one.