Lojban has IRC (Internet Relay Chat) channels!
There is a chat cheat sheet that has a nice list of common phrases in Lojban that you'd use in a chat room.
If you'd like to see what the chats are like, and perhaps review hundreds of questions and answers abut learning Lojban, you can view any of the archived chat logs.
The Anki software has a good dozen or so decks of flashcards -- all downloadable for free - for learning Lojban.
Anki is available on all major platforms (Windows, Mac, Linux, Andriod, and iPhone) and is free. Please donate to the Anki project to support great educational software development!
Want a fun way to learn and practice a new language? How about playing a text adventure in the new language?!
The classic Infocom-style text adventure "Colossal Cave" has been implemented in Lojban. You'll need a Z-Machine Interpreter program (do a Google search to find the latest Windows versions). I found Zoom for Mac, and it installed on Lion and works great.
Come ask questions and have discussions about Lojban and learning Lojban on the beginner's forum on Google Groups.
Discuss anything about how to understand a part of the language, how to learn it better, study tools, actual teaching sessions, and so on -- all that is on topic. Nothing else is.
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You can find other Lojban forums here.
From the introductory book, "What is Lojban?":
Lojban (/LOZH-bahn/) is a constructed language. Originally called ‘Loglan’ by project founder Dr. James Cooke Brown, who started the language development in 1955, the goals for the language were first described in the article Loglan in Scientific American, June 1960. Made well-known by that article and by occasional references in science fiction and computer publications, Loglan/Lojban has been built over four decades by dozens of workers and hundreds of supporters, led since 1987 by The Logical Language Group.