Google Talk Guru is an experimental service from Google to provide important Search Results (may be most common search results ) in Gtalk itself. The concept is like you are chatting with your find in Gtalk and you want to know the current status of your favorite sports or the weather in a city at the same time. You do not need to go to Google Search (and leave Gtalk) to obtain these information. Google Talk Guru will tell you the current status of your favorite sports or the weather details in Gtalk itself. To get this service you should invite Google Talk Guru to chat with you. For this you should login to Gtalk and invite guru@googlelabs.com to chat with you. You can use specific commands to obtain results from Google talk Guru. The list of commands provided below.

According to this, if you want to get weather details of Delhi, you can type it as weather Delhi. You will get the current weather details from Google Talk guru. In the same way you can get definition of any word by using the command Define. Once you saved guru@googlelabs.com in your contact list, you can use this service at any time.