How do I email a large mass of people at once?

Although an online discussion is certainly collaborative, mass collaboration differs from a large forum, email list, bulletin board, chat session or group discussion in that the discussion's structure of separate, individual posts generated through turn-taking communication means the textual content does not take the form of a single, coherent body. Of course the conceptual domain of the overall discussion exists as a single unified body, however the textual contributors can be linked back to the understandings and interpretations of a single author. Though the author's understandings and interpretations are most certainly a negotiation of the understandings of all who read and contribute to the discussion, the fact that there was only one author of a given entry reduces the entry's collaborative complexity to the discursive/interpretive as opposed to constructive/‘negotiative’ levels.