most of the profiling tools available on the web today fall into this category. the user, upon visiting the site/tool, enters any relevant information like a keyword e.g. dystrophy, diabetes etc., or genbank accession numbers, pdb id. all the relevant hits by the search are presented in a format unique to each tool’s main focus. profiling tools based on keyword searches are essentially search engines that are highly specialized for bioinformatics work, thereby eliminating a clutter of irrelevant or non-scholarly hits that might occur with a traditional search engine like google. most keyword-based profiling tools allow flexible types of keyword input, accession numbers from indexed databases as well as traditional keyword descriptors.