A(n) is a type of collaborative website that allows users to create, add, modify, or delete website content.

A wiki is this type of site. The users can, anonymously or with a profile, add to or delete content already posted. This gives the community the ability to add to the overall knowledge base on a specific subject. The site tracks changes through IP addresses to make sure that changes are not done maliciously.

Just trying to get some points : p sorry bro