i saw one time a plugin that when some people come from google search engine to my blog, they would see a message like: "thanks for coming up to my site through google" but if they came directly they would see a message "thanks for typing out my domain" but if they came from yahoo they would see: "congratulationss from visiting my site from yahoo" well, not exactly, but i was searching for something like this and i found nothing. could you help me?? i need for my wordpress blog, but anyway any kind of php, etc... would work.
It sounds fun, but I would suggest reconsidering. these plugins get lots of cpu and if you get stumble or dugg, your blog will get suspended pretty fast. I had such toys too, and I removed them all. I now stick with the basics, and the readers prefer that too...
thnks robijainnis.. but i dont care about cpu usage.. (i have used about .5% of my dedicated server bandwith) its that i need this plugin for a second purpose...