zunzun.com is gone due to its owner, James Phillips, going partially blind and therefore being unable to maintain it. For those who never used zunzun.com (probably everyone reading this) it let you paste a bunch of rows of text, each containing two (or even 3) numbers, into a text box, and then it provided a best function fit with full statistics. I used it a _lot_ because it was one of the two most useful online tools I've ever found: the most useful being Calchemy, a units calculator that does automatic solving by dimensional analysis <http://www.testardi.com/rich/calchemy2/>, and even it has been degraded from what it once was.
People just don't seem to 'get' really good tools.
