Deep Web Research 2010: Marcus P. Zillman is a an internet search expert whose extensive knowledge of how to leverage the “invisible” or “deep” web is exemplified in this guide. The Deep Web covers somewhere in the vicinity of 1 trillion pages of information located through the world wide web in various files and formats. Current search engines are able to locate around 200 billion pages. Marcus identifies sources to mitigate the odds on behalf of serious searchers.