Tlen.pl

Tlen.pl is an instant messaging service that was popular in Poland. It was developed by the company BWA and originally launched in the early 2000s. Tlen.pl allowed users to communicate with each other through text messages, and it supported various features such as file transfers and emoticons. The service gained popularity for its user-friendly interface and the ability to connect with other messaging protocols. It was often compared to other instant messaging services like ICQ or MSN Messenger.