Most websites have search box that generates dynamic webpages that contains search results. Some experts say that google doesn't like dynamically generated pages. Should i block these types of pages on my robots.txt?
Google doesn't have a problem with dynamic pages. In fact, they support them in their online help system! Might want to check that help to see what they say about dynamically generated pages and the ol' robots.txt file, tho. Might be something -- might be nothing. I haven't checked recently -- but I know they support these things. When done correctly, they index quite well too!
If they are dynamically generating keyword stuffed junk, then G will treat them like any other spam. I don't know where you are getting this so called 'expert' opinion. Do you have a reference because I never heard of such a thing. Today probably more than 50% of the web is dynamically generated so I don't believe the statement at all. Are you sure you are not talking about 'cloaking' which is a dynamic technique used for serving 'different' pages to crawlers. This is a black hat method that can get a site banned. Is this maybe what the 'experts' are talking about? /*tom*/