The Udell Barrier An invisible condensation point when the attention around your web business idea condensates into a major capital event, i.e. an acquisition. The Udell barrier is so named because it occurs a fixed number of days after your idea is mentioned on Jon Udell's weblog.

Not that tons of webloggers couldn't claim similar pre-knowledge - and not that Jon Udell doesn't mention tons of companies that never cross the Udell Barrier, but still...