When Does Blog Begin?

Before blogging became popular, digital communities took many forms, including Usenet, commercial online services such as GEnie, BiX and the early CompuServe, e-mail lists^[2] and Bulletin Board Systems (BBS). In the 1990s, Internet forum software, such as WebEx, created running conversations with "threads". Threads are topical connections between messages on a metaphorical "corkboard". Some have likened blogging to the Mass-Observation project of the mid-20th century. This claim needs references to reliable sources since August 2007" taken from: wikipedia