Ping to Google - Speed up indexing your site in google

Google has recently announced that the Google Blog Search Pinging
Service is now accepting pings from blogs. So, if you want to ensure
your latest posts appear in Google's Blog Search you will want to ping
them everytime you make a new post.

There are two ways you can do this.

Manual Ping
The manual method of pinging Google is to simply go to
http://blogsearch.google.com/ping and enter your blogs URL everytime
your blog is updated. This is the straight forward method but many
will prefer the Automatic Ping method listed below.

Automatic Ping
If you want Wordpress to automatically ping Google everytime you
update your blog, then you will need to add
http://blogsearch.google.com/ping/RPC2 to your Update Services box in
your Wordpress admin area. This is found in the options/writing
section of the admin area and by default Pingomatic
(http://rpc.pingomatic.com) will already be in the text box.

While Pingomatic already pings a number of services for you, by adding
Google's ping url to the Update Services list you are sure to increase
your blogs exposure on the net. For more information on ping lists and
a comprehensive list of update services see the Wordpress Compressed
All Inclusive Ping List.