Yep, you can build almost any kind of website you wish within Clickfunnels.. from ecommerce to blogging. but I personally prefer to keep things specific to what they are. Clickfunnels has been built ultimately for Funnels, so really unless you are looking for something that has "Funnels" in its core then I would try to find an alternative.
e.g. If you are looking for creating a blog, that's updated regularly, then a CMS like Wordpress would make more sense.