I took a look for some other comms, and I don't know whether this counts or not, but I notice you're missing nano_boom, which basically seems to act as a Big Bang comm using stories written for NaNoWriMo. (Edit: Oh, but it was last updated in 2007. Oh well.)
I don't know anything about these myself (I was using the tools I've made for myself to find stuff on LJ), but I did check that these were actually bang comms.
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I took a look for some other comms, and I don't know whether this counts or not, but I notice you're missing
Two other Big Bang comms you don't have:
I don't know anything about these myself (I was using the tools I've made for myself to find stuff on LJ), but I did check that these were actually bang comms.