By Chris Angus http://www.seocompanyuk.com Should you hire the services of a professional SEO company? Before you do this there are a few things you should know as often the SEO companies that promise results are also the ones that are practicing tactics that are either borderline illegal or even actually illegal. This is particularly true of SEO firms that advertise themselves as being aggressive or guerrilla about their search engine optimization tactics. Some of these tactics are so unfair that some search engines have actual gone so far as to post warning and articles about using these unethical methods to promote your site. Google in particular is very concerned about unfair or overly aggressive viral marketing practices and how you could be utilizing these in your web site without even knowing it because an SEO firm deployed the method for you. Typically a good SEO company will provide the client with the typical search engine optimization services. These include writing keyword-enhanced text, changing the architecture of the site and the finding of relevant directories that the site can be submitted to. However unethical companies use SEO strategies that can swiftly and permanently get you blacklisted by the entire major search engines. These include such techniques as cloaking, creating doorway pages and keyword stuffing. If you are not that thrilled about possibly paying a lot of money to an SEO service only to be eventually blacklisted by a search engine then make sure that you quiz your SEO services provider about exactly what kind of techniques will be used to search engine optimize your web site. If they are evasive or give you an answer you can’t understand then avoid them. To be safe, make sure that before you sign on the dotted line or click yes to those terms of agreement you need to find out exactly what the search engine optimization company can do for you.