I ran a script to search around 400 keywords on yahoo. At first, it giving me the result, but after a while it stop working. I use both yahoo and google, and google works just fine. Is there any limitation on yahoo that allows you to submit only certain number of query per time period?
I don't know the answer, but I would assume their is some limitation. I wonder how other people write scripts to go through yahoo and get results? They must run into the same problems, how did they get around it?