As the Web grows, the monumental task of cataloguing it becomes ever more challenging. Consider the size of this immense resource. Thousands of search engines and metasearchers all claim to make your job of finding the meaningful tidbits in this massive information glut easier. These tools each work differently and all have different strengths and weaknesses. New search tools emerge every day.
Robots work around the clock.
Databases and indices swell. Old favourites are evolving, disappearing, or merging. Keeping track of this monumental resource is a full-time job. The sites listed here are dedicated to that thankless task, and can provide more up to date information than we could hope to. Other sites on this list are excellent sources of general search information and tutorials, similar to WebLens.