Membership stats tracked before/after Tea Party?

[Joe]

It might be interesting to track the rate of new members signing up with this site in the next week or so, and compare it to the rate at which membership increased prior to the exposure of the Tea Party. Perhaps we could do the same in the week or so following any further upcoming events? This might help in the future development of the promotional materials given out and the press releases sent to the media, to find out what works best to raise awareness of the group.

Is there a feature within the website administration to track this type of statistic?