Criteria for a search engine

• support of metadata

• modest system resource consumption

• possibility to make private index collections

• friendly web-based administration interface

• indexing document types other than HTML (e.g. ps,pdf)

• customisable user interface and help

• good customer support (access to the product developers)

• possibility to index protected pages

• ease of product installation

• speed of query results

• frequent/flexible index update without "harassing" the web servers on-site.

• very good price!