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Hey Sophia, Thanks for the question. We actually haven't had any other reports of undue slowness in OSE. It's possible you're seeing a lag due to your connection or machine? As far as making it bigger, we're always working to increase the size and frequency of our indices. It's tough to compare it to a company like Majestic or Ahrefs who's entire business is indexing while OSE is just one part of a much more comprehensive suite of tools. I'm sorry to say it may be a while before we have the sheer volume they have. Thanks, Joel.

Hey, I think I answered the question. Go to this page: http://www.seomoz.org/article/search-ranking-factors Click on any of the tabs. Scroll a little bit and select a sentence and search for it on Google  You will see that Google gives the right URL, however it doesn't highlight the text on SERPs. I do believe there is less weight given in that case, since google doesnt even seem to highlight the sentence  In the case of long tail keywords, it will pick the destination that delivers the intent right away. In the case of hidden / non visible divs, there are more steps required to get there.

Check out this on Google Webmasters http://www.google.com/support/forum/p/Webmasters/thread?tid=3e9c803830881e13&hl=en Hope it helps