Dolphin International: A quarterly printed magazine for penpals, marriages, and snail mail friends.
Dovile's Snail Mail Pen Pals: Get tips on letter writing and improve your language skills by writing people all around the world.
Global Penfriends: List your information for free for others to contact you, or join Global Penfriends to select your own penpals.
International Pen Friends: Established in April 1967, membership has grown to over 1.5 million worldwide. Individual and school applications are available.
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.
Letters 4 Friends: Pen pals listed by country or date of addition. Available also in German and French.
Maarten's Snail Mail Pen Pals: View penpals based on date submitted or by country, age, and gender.
Pen Pallers Zone: A site with both email and postal penpals, swappers, and slam books.
Penpals Cafè: A free snail mail penpal service.
Peter's Penpal Club: Privately register for a free personalized penpal match.
PostcardX: Postcard exchange site that encourages sending kindness to random members.
SAPE: Matches people with penpals in the former USSR and Baltic countries. Applications by snail mail only
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.
The Mailbox: Adult only penpal listings for friends in a guestbook format by age group. Penpals must be contacted by email to request their postal address.
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.