Sorry your Kindle is dead...is the battery dead or is it broken?

Whichever Kindle you have, you do need to have either WiFi connected or your 3G on. Just to be sure.
On my K4 ($79), I call up the menu using the menu button, then select "Shop in Kindle Store."
The front page of the Kindle store will sho. One of the options is "Kindle Best Sellers" and another is NY Times Best Sellers. There is also "Books" which takes you to a listing by genre. Clicking on one of the genres will take you to a list in that genre, sorted by bestselling.
The Kindle Touch has a shopping car in the Top Menu bar visible on the home page or in any book when invoked. Tapping on the shopping Kart brings you to a different version of the Kindle store home page with the same options.
Hope this helps!
Betsy