Now lets try to add a Visual Best Bets. It is very easy!! For our example I will show the SharePoint 2010 image when ever somebody search with SharePoint as a Visual Best Bet. First we need to add a keyword for SharePoint. For this go to Site Settings and Look for Fast Search Keywords under Site Collection Administration. Add a Keyword for SharePoint.
Now Click on Add Keyword Link:
With this we are done. Now once we search SharePoint from the Fast Search site we will get like this and we can see that logo of SharePoint 2010 is displayed as visual best bet.