This is the second half of coverage of Day 1 of ZendCon 2007. The tutorials day is covered here - ZendCon Day 0 and the ZendCon Day 1, Part 1.

The first real session of the day was from Terry Chay on "Finding Art in the Internet". In the opening, he warned us of his swearing, so I decided to keep an f-bomb count. And then be began quoting himself and showed definitive proof on how he killed Ruby. After a while he focused on some of the core of the presentation and dove into the differences between complexity versus complex and simplicity versus simple. The best phrase he dropped was the distinction between viral marketing and word of mouth marketing - a major argument at BarCampDC - "Viral marketing is when users using your system bring in more users. Anything else is Word of Mouth Marketing sh*t." and used differential equations to describe and demonstrate what happens with Viral Marketing... k > 0.