I'm not sure about the name of the thing i'm looking for but here is a little description of what i want -
1. Already have a website built in which users can register and has some activity features.
2. Want to be able to provide users a blog(?) of their own, where they can write stuff, upload images, upload links of videos, upload text files etc. onto the site.
3. How do i go about achieving this? Or is there a CMS or something that i can integrate into my site to provide this??

Herhangi bir yardım takdir edilmektedir. Teşekkür ederim:].