One of the hardest things about the search engine optimization realm is know when to adapt your website due to changes in the search engine algorithms, but it's even harder to know when to not make changes and then act accordingly. Truly knowing when to hold steady and not make changes is (in my opinion) one of the hardest things to do in the space.
In the past couple weeks both Google and Yahoo's algorithms made some very serious changes (you may have noticed a lot of movement in the organic search results) - and this definitely affects all of us that utilize the internet as a serious marketing medium in the real estate and home staging spaces.
Only over time will one be able to recognize patterns and identify what has changed in the Google and Yahoo secret formulas (or algorithims) that has caused sites to change rankings while SEO pro's and a few endeavoring self-managed sites are jocking for the first page rankings - and this last time I noticed some changes that have come clear to me.
Keep your eyes open over time and they should become clear if you really pay attention - and oh yeah - I am making no major changes on this last Google adjustment since I think they over compensated on their algorithms and will revert back enough to correct themselves.