There is a parameter you can use in a google search, which lets you see what new pages from a site google indexed in the last x days.
The search looks like this:
 
http://www.google.com/search?q=site:website-design-blog.com&as_qdr=d5
 
This will search what new pages from the site website-design-blog.com have been indexed in the last 5 days.
 
There are two parameters to use:
 
site - the website witch pages you wish to check if they had been indexed
as_qdr - here you specify the periods of time; in this case d5 means last 5 days
 
Here are all the possible values of the as_qdr parameter:d[number] - past number of days (e.g.: d10)w[number] - past number of weeksy[number] - past number of years
 
I think i learned about this from the Mat Cuts blog a long time ago.