I have my blog which is two years old but recently i had 10 post on it"(http://lateshnewtechnology.blogspot.in/)" and adding more in few in upcoming days so how may i earn through this blog???? How am I able to increase my PR?????
First of all do more and more commenting on different blogs of your niche. This is the best and easiest way to earn backlinks and when you will get good number of visitors then your adsense will also improve.
First thing I learned about websites and blogs is that you have to take care of the social media part. Make your site/blog known through social networks. Also, try posting regular articles. Don't post one article this month 10 articles next month and 3 posts next month. You must increase your, let's say analytics and PR, and then think about revenues.
post more useful articles and do some quality link building... If you continue the above 2 steps, you will be earning some cash soon
As a fellow newbie we can really learn a lot in this forum. But for me, the content of your blog is pretty good