I have a particular site that I have been working on for about eight months and had the site on Page 1 of Google search results for eight keywords (they are fairly small local-based keywords, so I'm really not trying to boast). Perhaps six weeks ago for two of the keywords we popped into the #2 position for Google Plus Local results. When this happened the site completely disappeared from the regular search results. A couple weeks later, the Google Plus Local listing was gone, and the site was back on Page 1 in the regular listings. This has gone back and forth several times, with either a very high Local result or a very high regular search result, but only one at a time.
I suppose it would make sense for the same site to only be able to have one position on the front page at any given time, but my searches for info on this have been entirely fruitless.
Has anyone else seen anything like this or have any thoughts?
Cheers.