It appears that over the weekend a search update that affected the search results began taking place. A WebmasterWorld has a thread where folks are discussing the changes.
Senior Member steveb said yesterday;
Still at least two main indexes... the apparently being replaced that had tons of freehost spam, and the newer on with much less freehost spam but different data-refresh/lost/screwed-up sites.
Where are people noticing the changes? One member documents the data centers.
Forum discussion at WebmasterWorld & DigitalPoint Forums.

Comments:
Mohammad
08/25/2008 03:10 pm
May web Site is not update to cearch in google. Please Why?
santosh
09/17/2008 05:06 pm
how to refresh the google search after i have completed my search engine,ie I dont want to see it in future the content in search engine
P. Sundaravaradahan
12/22/2008 12:15 pm
Whatever your needs, you can rest assured that Mahalakshmi Modern Rice Mill will fulfill them to the highest possible standards – and involve you every step of the way.
magdy
03/25/2009 08:15 pm
google can not sty as a home page whyyyyy
arunkumar
01/20/2010 10:30 am
your all last version send my mail.i am your customer.your all soft ware i am use.your soft ware very very good sir. thank u
larutmalam
07/18/2010 01:36 pm
My website no update in google search. Why? Advise please.
Rob Abdul
07/18/2010 11:02 pm
Thanks for the heads up on this!
Rob Abdul
07/18/2010 11:06 pm
Guys it takes days. Get a link from a domain that ranks high in Yahoo to link to you, that's it.
Abc
12/28/2010 01:11 pm
remove browaer cache by tools --> internet options --> ckilc on "Delete Button" --> click on "Delete All" button