Pen Pals
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- The Letter Exchange
- Anonymous pen pal listings in categories like Daily Life, Literature, and Ghost Letters (writing as imaginary characters). Paid subscription includes confidential forwarding.
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- Christian Pen Pals
- A part of Church USA Internet Ministries, the organization connects prisoners with Christians. Contains testimony, application forms and resources.
- 23
- Conpals / InmateConnections
- Prisoner penpal listings from around the United States. Profiles include photos, gender, convictions, and description.
- 25
- Friends Beyond the Wall
- No charge for inmates' addresses. A search feature is available to find inmates by age, race, and location. Fee to list inmate.
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- Inmate Classified
- Database of inmates from several US prisons who seek new friends to exchange letters. Fee to inmate to list ad.
- 30
- Jailhouse-Babes.com
- Specializes in personal ads from incarcerated females. Listings are free to all women behind bars.
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- Lost Vault
- Offers free pen pal listings for prisoners, discussion forums, informative links and a periodical newsletter.
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- Meet an Inmate
- Includes profiles and photos of incarcerated men and women seeking correspondence and companionship. Ads are categorized by age. All addresses are free.
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- Outlaws Online
- Male and female inmates' personal ads. Search by categories including birthday, type of sentence, and US state. Also has information on resources for prisoners.
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- Prison Inmate Pen Pal
- Contains listings for men and women penpals, with photos and profiles. Includes mission statement and FAQ.
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- Prison Inmates
- Lists United States prisoners seeking penpals. Photos included. Inmates have paid a fee to be listed.