I don't know if I'm the only one experiencing this, first, i don't know if this is related, but Google a simple search www. domain. com sometimes returns 268, other times returns 236. strange, but i can live with it, what is really strange is under my target key phrase, I'm bouncing like a monkey. and it is almost always clockwork when it happens. About 9am EST, i am #3 about 10:30am, it drops to #14 sometime near 3pm, its back up to #3, sometimes appearing at #5. By 8pm, its back at #13 but its never falling below 13. Keep in mind this keeps going on daily. This "dance" started about 6 days ago, and has been confusing the hell out of me, I've used several tools to check multiple data centers, and 90% say 12, so where is it getting 13? where is it getting 3? I need this site to stick on the first page obviously. I do have some social bookmark activity, Can this cause a daily dance? and if so how can i make Google say, hey, I'm going to put you #3, and keep you there rather than tossing you around. my boss thinks the dance is a bad sign and has been b1tching, but this is the first time I've appeared on page 1, so its a welcomed sight, should this be looked at as the future, and if so, how far away, or should this be looked at as Google is playing the tease, and I'm going to stay 13?
It's true what you are saying. I am experiencing the same with one of my blog. It goes up, down so frequently and so many times in a single day. Don't know what's actually happening.
also google give ranking on the basis user login, country and other factors. So if you were login then it will show different. Eg. when i login and search dp then digitalpoint is first but when i logout and search it is 2nd.
The reason for the 'dancing' is not because google are tweaking their algorithm or anything... they are trying to deliver personal search results based on your historical searches. This may help the casual searcher but is pointless for webmasters who want to check where their results show up - as they will change so frequently.
This dance has me flustered as I went from #3 to well over #100 and now im #28 and bouncing. Making it hard to pin point if any seo is working or messed up or if it is a google dance.