Google Scholar:
It is a service Provided by Google it is specifically designed for the student's scientist and someone who is looking for a research paper Google search engine specifically searches for publishing paper news articles and research papers to maximize your productivity in your work.
Google Sky:
It is another fabulous service provided by Google where you can travel through space just fly your computer monitor and with the internet. The best amazing part about the service if your turn on your GPS you can see which part of the sky is above your head at the given provided time.
Google Alerts:
You can monitor web activities and get an email or notification about a specific event or a news by simply adding keywords to google alerts.
Google Trends:
It let you captured the trend around the world or for a specific geographic region. This seems to be an interesting service by google if you want to explore what's trending around.
Thankyou...