Types of jiu-jitsu?
I'm aware that there are different forms of jiu-jitsu out there. Example I can think of off the top of my head include Aikido, Judo, BJJ, and Japanese Jiu-jitsu (aka tai-jitsu).
Are there other common forms of Jiu-jitsu being taught here in the US other than these?
I also had some questions about Tai-Jitsu, I'm assuming this is Japanese JJ? I've looked at a few vids online, it almost looks like karate. Would this be a fair example?