Korrd - 5:37 am on Feb 25, 2011 (gmt 0)
Danny is calling this update the "Farmer Update" and the earlier one the "Scraper Update". Not exactly hurricane names, but they do make the distinction clear.
I'd suggest "herbicide update". It doesn't exactly roll off the tongue but it is descriptive and it bookends nicely with "scraper update", scraping being another form of weed control. Or playing off herbicide and the date maybe "2-4-D update" or going farther "2-3-F"? But then I'm only a webpeon here.
In a small niche search I monitor the big farm sites which had only recently starting making inroads are now gone, but older similar content quality MFA targeted sites are still there. Otherwise the SERP top 30 or so got reshuffled with all the players still there but in new positions with the exception of the top three powerhouses who are pretty much locked in.