Does Google recommend working with companies that offer to make my site Google-friendly? todays article part3

References are a good start, but they don't tell the whole story. You should ask how long a company has been in business and how many full time individuals it employs. If you feel pressured or uneasy, go with your gut feeling and play it safe: hold off until you find a firm that you can trust. Ask your SEO firm if it reports every spam abuse that it finds to Google using our spam complaint form at http://www.google.com/contact/spamreport.html. Ethical SEO firms report deceptive sites that violate Google's spam guidelines.

Make sure you're protected legally.
For your own safety, you should insist on a full and unconditional money-back guarantee. Don't be afraid to request a refund if you're unsatisfied for any reason, or if your SEO's actions cause your domain to be removed from a search engine's index. Make sure you have a contract in writing that includes pricing. The contract should also require the SEO to stay within the guidelines recommended by each search engine for site inclusion.

What are the most common abuses a website owner is likely to encounter?
One common scam is the creation of "shadow" domains that funnel users to a site by using deceptive redirects. These shadow domains often will be owned by the SEO who claims to be working on a client's behalf. However, if the relationship sours, the SEO may point the domain to a different site, or even to a competitor's domain. If that happens, the client has paid to develop a competing site owned entirely by the SEO.
Another illicit practice is to place "doorway" pages loaded with keywords on the client's site somewhere. The SEO promises this will make the page more relevant for more queries. This is inherently false since individual pages are rarely relevant for a wide range of keywords. More insidious, however, is that these doorway pages often contain hidden links to the SEO's other clients as well. Such doorway pages drain away the link popularity of a site and route it to the SEO and its other clients, which may include sites with unsavory or illegal content.

What are some other things to look out for?
There are a few warning signs that you may be dealing with a rogue SEO. It's far from a comprehensive list, so if you have any doubts, you should trust your instincts. By all means, feel free to walk away if the SEO:
a) own a shadow domains
b) puts links to their other clients on doorway pages
c) offers to sell keywords in the address bar
d) doesn't distinguish between actual search results and ads that appear in search results
e) guarantees ranking, but only on obscure, long keyword phrases you would get anyway
f) operates with multiple aliases or falsified WHOIS info
g) gets traffic from "fake" search engines, spyware, or scumware
e) has had domains removed from Google's index or is not itself listed in Google