Pretty close,it's basicly a bot that remains hidden until told my code on particuar sites what to do.They sleep and have lot's of babies.It then mines the data that the site directs it to grab.Its an old take off on the term spider food,which is basicly now hidden keywords.Spider food are words hidden in the same color as the page,the type cannot be precieved by the naked eye.Google,Yahoo etc,now have programs to ditect spider foodand can stop their point ratings scams.Thats why seo and sem are the hot topics in on line marketing now.
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I want to Bust a nut in that bitches right eye