Just under a couple of hours ago Yahoo! announced a “Weather Report”, which, in Yahoo terms means that their search results are getting revamped (if only slightly). Apparently the update began on Sunday and is expected to be completed by Wednesday morning. There isn’t much to this notice other than it is being applied, but it is worth knowing about.
Remember not to panic if you see your Yahoo rankings fluctuate over the next couple of days. Search engine updates like this tend to produce a ranking shuffle and it is useless to act on any changes until the dust settles.
I will keep you up to date if any of the changes have a measurable impact.