I'm ranking good in the SERPs and my landing pages are staying in the same place in Google rankings day after day (may change a little - no big deal). Only difference that I've noticed is that my unique visitors that come from the Search Engines have been dropping over the last 10 days. Everything looks good except for this. Anybody come across the same problem?
If your website still holding the same ranking, you should consider people are not searching your targeted terms as usual... it might happen for seasonal keywords like (new year, valentines day, etc...
I have noticed a drop in the traffic on sites for non essentials, but I have some Wal-Mart affiliate banners that are getting abnormal traffic.
Sometimes this can also happen if google de-index some of your sub-pages that were getting lots of traffic, google is known for doing this.