The Mailbox

Penpal listings in a guestbook format by age group. Penpals must be contacted by email to request their postal address.
http://www.geocities.com/the_mailbox_2000/

Peter's Penpal Club

Privately register for a free personalized penpal match.
http://www.snowpals.de/penpals

ps.

A site whose members practice Random Acts of Mailing. Members exchange postcards, letters, and mail art.
http://post-script.net

WCF's International PenFriends

A non-profit cultural and educational organization based in the USA that has grown to over one million members in over 251 countries and territories around the globe.
http://www.wcf.org/penfriends.htm

Maarten's Snail Mail Pen Pals

View penpals based on date submitted or by country, age, and gender.
http://members.tripod.com/alqazed/

Snails R Us

Search for penpals all over the world by region.
http://snailsrus.tripod.com/

Just Write - Where Letter Writers Meet

A quarterly magazine where people place listings to meet other letter writers. Paid subscription includes 50 words in each publication and a forwarding service.
http://www.justwriteletters.com

Pen Pal Expressions Postal Magazine

Quarterly publication filled with free pen pal ads, rubber stamping, crafts, Mail-Art, and parenting.
http://ppemagazine.tripod.com

Global Penfriends

List your information for free for others to contact you, or join Global Penfriends to select your own penpals.
http://www.penfriends.com.au

Dolphin International

A quarterly printed magazine for penpals, marriages, and snail mail friends.
http://www.dolphin-intl.com/pmag.htm

The Letter Exchange - A Magazine for Letter Writers

Anonymous pen pal listings in 35 categories like Daily Life, Literature, and Ghost Letters (writing as imaginary characters). Subscription includes confidential forwarding.
http://www.letter-exchange.com

SAPE

Matches people with penpals in the former USSR and Baltic countries. Applications by snail mail only
http://www.michander.com/sape/

Pen Pallers Zone

A site with both email and postal penpals, swappers, and slam books.
http://www.geocities.com/bookbug1964/

Pen PalsUnlimited

A printed penpal newsletter that also features articles about scrapbooking, stamping, crafts, and gardening.
http://members.aol.com/Yumablackwells/

MoPs Penpals

Penpal Snailmail Page with a long list of penfriends. Find a new penpal to write to or submit a penpal add of your own so people will write letters to you.
http://medlem.spray.se/mops_penpals/

Dovile's Snail Mail Pen Pals

Get tips on letter writing and improve your language skills by writing people all around the world.
http://www.geocities.com/dovile.geo/

PawChat

Free penpal site for people with pets
http://www.pawchat.com

International Pen Friends

Established in April 1967, membership has grown to over 1.5 million worldwide. Individual and school applications are available.
http://members.ozemail.com.au/~penpals/