Frequently in the course of their research, scientists come across questions that cannot be answered through a simple Google search. For example, if you have a specific protein sequence, you need to know where it came from, or which organisms have proteins identical or similar to it. Would you trust Yahoo for that? No. Do you have to find it out through trial and error by sequencing a whole bunch of proteins? No, that would take years. Do you have to read every study associated with your sequence? No―how would you even search that? Now, you use a brilliant search tool called BLAST.