If you are a budget conscious traveller going to New York City, you'll love the following websites!
There is a ton of free stuff to do in the city:
This is a website that provides up to date and detailed information on free events, including free concerts and tours. You can check out the current day's events or put in future dates that interest you.
Another great site is:
The site will match you with a local volunteer greeter/host. Sign up for this free service on the website. You can enter special requests based on your interests or needs.
I have found both of these sites very easy to use. They are great for unique and authentic experiences with New Yorkers and local culture.