I found this blog about Kolkata food called Chakhori Corner some months back. And being a true blue foodie with a strong academic interest on eating out, got hooked to it. Three foodie college girls - Jahnavi, Sohini and Sreeparna - review restaurants on this blog with rating on various parameters comprising decor, cleanliness, service, taste and value for money. Each post mentions portion size (i.e. one portion is ideal for how many heads) and cost of individual dishes and their photographs.
The eateries are mostly in the budget category and spread in south and central Kolkata, across cuisines. The cuisines show in the various labels listed at the right, so you can pick up a cuisine and check out posts on various restaurants reviewed under it.
What I especially like about Chakhori Corner is that it shares a down-to-earth and extremely honest view about the restaurants. The bloggers are not in awe about any place and thus don't get carried away. 'Value for money' is an attribute that is sincerely reflected in all the posts. Hence, apart from being a reliable Kolkata food blog, it's worth trusting for the value conscious and price sensitive Kolkatans. There are reasons that it has more than 100 followers, who I believe, are mostly from the city.
It also lists a few easy-to-do recipes of common Bengali delicacies.
They also have a Facebook page. See it here.
A definite recommendation!