Bell (2007) writes an interesting article on the tools – he says – that every researcher or librarian should need. Discusses Boolean operators, controlled vocabulary, field search, proximity search, truncation, bounds, and "pearl growth". (2007, p. 1) The first tool he talks about is Boolean, which instructs the system to relate search terms in the way the searcher wants them. The Boolean operators used are AND (+), OR, and AND NOT or NOT (-). With a minus sign or a dash (-). AND results in an intersection of two sets, OR represents a union of two sets (actually gets one or the other or both), and NOT leaves out records that contain the word the searcher does NOT want. Most people are comfortable using AND, but can't understand why OR actually retrieves fewer results. Most people rarely use NOT because they don't want to rule out possible useful results. Many databases provide Boolean search boxes with drop-down lists usually set to AND. The next tool is controlled vocabulary. Controlled vocabulary is the same as subject headings, thesauruses, descriptors, or authority checking. Its use provides all the information on a topic contained in a database, reduces the use of synonyms, provides precise results and allows the searcher to access unfamiliar information. The controlled vocabulary provides the user with a list of topics that refines the search, especially with unfamiliar topics. Then there is field research. This is a search in a specific field of the database record, such as author, title, date, journal name, etc. Most databases provide default search fields with drop-down menus. The designers have spent a lot of effort... middle of paper... No one can predict the future of human-powered search engines. How will they affect web searches? People want to search the web; they want to be able to express their opinions without repercussions, but how safe can they feel after hearing about these people hunts? The government may need to implement laws or policies to make the web safer for everyone. Works CitedBell, Suzanne. (2007). Tools that every researcher should know and use. Online, 31(5), 22-27. http://www.infotoday.com/online/Ojala, M. (2007). Finding and using magic words: keywords, thesauri, and free text search. Online, 31(4), 40-42. http://www.infotoday.com/online/Sanders, D. (2008). Tag: it's you!. American Libraries, 39(11), 52-54.http://americanlibrariesmagazine.org/Xia, J. (2009). Extreme human-driven web search. Online, 33(1), 33-36.http://www.infotoday.com/online /