Uses a unique proprietary algorithm to identify the most popular and interesting WWW pages. Very fast, can collect over 10,000 pages per hour, but never has more than one request per site outstanding at any given time. Searches for common words generate lower scores because those words are found in many pages. Searches for uncommon words or for phrases generate higher scores because they do not appear in many pages. Scores range from 0 to 100.
Software handles all letters as search terms.
Also subject catalog. Earlier the search tips were on the main search page and it was better. Powerful search technology, very good in proper names and word phrases.