Linderman circulation desk. No listing by name, but cross-references by phone number and by address. Phone directories on the web. Often, these are out of date, and many times older entries are not removed.
Some services allow the consumer to update their own phone records.
Search by name or category, within state or city. Maps and directions. Also includes a People Pages service, which is more up to date than others. Detailed search under yellow pages lets you search businesses within a zip code, area code, etc. Results in sets of 5.