Penpal World is a reasonably new UK based web site. It is simple to use and with a layout that is easy to follow. Entrants are categorised firstly by age and then by gender. Entries are not automatic, but a confirmation e-mail is sent once the profile has been added to the web site. Probably worth signing up for, even though there are presently few entries, as the site is bound to grow in the near future.
Entries are free of charge.
The initial joining requires a reply to an e-mail. I had problems getting their initial profile form to function, and gave up. There will be a newsletter sent out to all subscribers, something not mentioned until you receive your confirmation e-mail, which you may unsubscribe from. The site is difficult to negotiate initially, needing four or five screens before you find the first profile, although there do appear to be a healthy range of profiles available when you finally get there. Entries are presently free of charge.