Hi and welcome to Blurtit!
As some users already explained, this is an online question and answer community, where you can find out about all sorts of things (topics ranging from technology, to business, health, travel, beauty, sports, and more), ask your questions, get answers and meet new people!
It is free and it's available to you 24/7 and aims at offering good quality content with comprehensive answers that you can comment on, instead of opting for a dry Wikipedia article. Plus it makes you part of a community full of people from all around the world.
I really hope this website will be useful to you, that it will give you the chance to express your ideas and satisfy your doubts while making new friends. (:
Welcome!