Pagerank, Age and Alexa

Google Pagerank, Age of the domain and the alexa rank are 3 significant things that u need to take care of while running ur blog. The mixture of all three can make ur blog/site a super success.

Google Pagerank :
Getting a pagerank can be sometimes a long work of patience as google accumulates the details after periodic 6 months of time. So it is better u start off as early as possible after crearting ur blog and work on building links. Link exchanging is the best way to get huge amount of backlinks. You may to pour some bucks out of your pocket to get your blog listed in different directories.
Pagerank come into picture when Selling your domain and Participating in "get paid to post" programs. Pagerank increases the value of your domain, and you can get great deals very quickly for your domain. In "get paid to post" programs, larger number of oppurtunities are available for higher pagerank domains.
Note : your blog URL with nofollow tag will not count for your backlinks. Pagerank has no relation with website traffic.

Age :
As the age of the domin increases its value also increases. It comes into picture when selling your domain.

Alexa Rank :
Alexa rank determines the traffic of your blog. This is important as these stats represent the popularity of your site. Alexa can help you when selling your domain and getting ads or sponsors for your blog.

Hope this helps :)