depository/repository of Mathematica notebooks

Is there a depository/repository of Mathematica notebooks (not necessarily Mathematica packages) where one can upload some of their notebooks so as others can access them easily?

• Welcome to Mathematica.SE! I suggest the following: 1) As you receive help, try to give it too, by answering questions in your area of expertise. 2) Take the tour! 3) When you see good questions and answers, vote them up by clicking the gray triangles, because the credibility of the system is based on the reputation gained by users sharing their knowledge. Also, please remember to accept the answer, if any, that solves your problem, by clicking the checkmark sign! Jan 11 '16 at 1:37
• Jan 11 '16 at 1:38
• Michael's suggestion of the demonstration project is a good one, but it is only for particular types of notebooks focused on a single Manipulate command. I don't know of a general repository, but searching github yields some interesting results Jan 11 '16 at 2:08
• Thank you Michael and Simon for your comments. Jan 11 '16 at 5:42