Domain slipped off the serps after change. Help please!

For some unknown reason the other day I decided to change the settings on my Wordpress site from mydomain.com to http://www.mydomain.com because I thought it would be better.

I had been ranking ok (page 2 after two weeks since launch) for my main keyword when it was set up in its previous mydomain.com manifestation and now it has vanished off the serps. The site is still indexed and the number of pages indexed are still increasing though.

My question is, will my site recover its former position fairly quickly once Google takes stock of my changes or have I screwed my position for a while?

Should I change back to mydomain.com or sit it out and wait for the http://www prefix to take effect?

Any insight will be much appreciated.

Thanks!

Technically, it should work its self out.

Thanks Jon, I'll sit it out then...

It could take a little while to readjust but you should be fine.

OK, I found my site ranking at position 96

I'll keep an eye on it. Hopefully it'll find it's way back to position 15 (or near enough) where it was before I made that change.

Fingers crossed!

did you made 301 forwarding so it reindex the new pages .. probably dancing around make few social bookmarks and 1-2 new articles and you should be fine

You should also set up canonical URL's so the search engine knows to look for the www. version of your site. Some SEO plugins do this i think - All in One SEO maybe.

Thanks guys. Yeah, I already ticked canonical URLs in All in One. Hopefully that'll help?