I wrote this post a while back. The content can still be relevant but the information I've linked to may not be available.
We have had a few clients ask us about Google AdWords because this can be an effective way of appearing near the top of Google listings (particularly for competitive keyword terms).
Google Adwords can be a fairly complex process but help is now at hand! We can manage your campaign based on the keywords and text that you specify or we can come up with words that you may not have thought of.