IM Federation

聲明(以下從該網站co來)：

1. Communicate with Everyone

You should be able to instant message your friends just as easily as sending them an email. You shouldn't have to think about what IM network they are on. You shouldn't need to maintain a separate IM account on each different network. It should just work!

2. Choose Your Software

You should be able to use whatever software program you want. If you have an account with the XYZ IM network, but you like a different software program better, then you should be able to use that other program. The XYZ IM network should work hard to make sure that their software is the best. They shouldn't force you to use their software, because they have blocked or crippled all other options...

3. Avoid Vendor Lock-in

You should have the freedom to change networks, or software at any time, and you should be able to do so without any penalties. When people have this kind of freedom, it will encourage innovation, and promote healthy, positive competition. (Which benefits everyone)

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所以應該使用IM Federation Network.