I am always checking on the performance of my website and how google reacts to my blog or forum. As you or I already know, my blog is indexed immediately by google after my article is published. This means that if I publish an article on my blog it appears on Google almost immediately, in spilt seconds.
Recently, I noticed that this is happening for my forum too! :) Look at the 2 screen shots which I have to prove my point. In the first screenshot, the article 'World cup themed speaker' was posted on the forum by one of our member on: June 22, 2010, 03:18:04 AM
The time when I capture this screen shot was June 22, 2010, 10:40 PM (about 8 hours ago)
Now look at this screenshot which I capture off Google. And when we search for 'World cup themed speaker' and what do we have? On the first page of google search result, you will find our article indexed at about 8 hours ago. Which means that google index our forum almost instantly in a flash!