Search engine marketing is need a lot of work, and you probably have other things to do. If you have the budget it’s always a good idea to hire a search engine marketing firm , so you can focus your energies on other important marketing aspects.
There are many search engine marketing firms available out there. Just make sure you hire one that has experience in all forms of search engine marketing. A firm that is confident to give referrals would be an advantage, as you can make verification for their performance.