anallawalla - 2:48 am on Mar 23, 2009 (gmt 0)
I have done this at a bureau and as a consultant. The bureau charged a flat fee up to 100 keyphrases per month. That did not allow for a lot of time per account each day. As a private consultant, I charged by the day. Some days I could look at the account and not find anything to change, but I still got paid.