Large Email Directories
These sites pride themselves on their size and completeness, and are a good place to begin your searchEmail Finder
Searches are free, but after the first 90-day trial period, listings must be paid for.InfoSpace
Trying to do a bit of everything, InfoSpace has email addresses, business listings, weather forecasts, shopping and much, much more...Inter800
Directory of toll-free numbers (800 and 888), with several hundred thousand listings.MESA, MetaEmailSearchAgent
Queries 8 large directories in parallel and combines the results.PeopleSearch
A meta search engine that allows you to pick which search engines are queried (max. 4) from a list of engines.W.E.D -- The World Email Directory
Currently claims to contain over 18 million email addresses.
Specialist Email Directories
These directories focus on a specific topic, job or interestAustralian Medical E-Mail Address Book
Email addresses for thousands of Australia-based medical practitionersCelebrityEmail
Send mail via this site to hundreds of celebrities.ClassMates Online
Find old friends with this alumni database covering over 27 thousand high schools, mainly in the USA and Canada.EmailChange
Track down people who have changed their email addresses by using this directory, which collects current and previous email addresses.Jewish Email Directory
Specialized directory for Jewish people; includes links to the best Jewish content sites.netAddress Book of Transportation Professionals
The Official Curkovic World Homepage
Directory of people whose last name is Curkovic. (Hint: This is quite a short list!)Pi Kappa Alpha International Email Directory
Rocket Scientist Private Email Reserve
A directory of workers in the Aerospace industry.Sky Adventures Pilot E-Mail Address Book
A directory of email addresses of airplane and glider pilots.UK Taxation Directory
Online directory of UK-based tax professionals.The Volcanologist List
Directory of people in the volcano trade.Webhog's WWW Directory of PBP Owners
Proof that you can find anything on the Internet, here is a directory of pot-bellied pig owners around the world.WEDA -- The Worldwide Email Directory of Anthropologists
World Alumni Net
Thousands of alumni from colleges and universities all over the world.Zoological E-Mail Directory
Directory of people who work with animals.