The Internet's potential as a major revenue earner can only be realised if users can find exactly what they want on the Internet quickly, accurately, and with little effort. The development of tools which support the finding of liquid analysers within a few mouse clicks and key strokes is becoming increasingly critical, given the unprecedented rate at which the Web is growing and the rising numbers of novice users
Some search engines consider both the frequency and the positioning of keywords to determine relevancy, reasoning that if your keywords liquid analysers appear early in the document, or in the headers, this increases the likelihood that the document is on target. For example, one method is to rank hits according to how many times your keywords appear and in which fields they appear (i.e., in headers, titles or plain text). Another method is to determine which documents are most frequently linked to other documents on the Web. The reasoning here is that if other folks consider certain pages important, you should, too.