It seems like certain TLDs tend to have a negative connotation to them, at least among my peers, such as .info, .us, .biz. I'm not exactly sure why, but I personally don't tend to trust .biz domains and I like to avoid them as much as possible.
I really like the new TLDs and I am wondering how the new TLDs will affect user perception of them. The new domains seem like they would be easier to recall for some, however I fear that users might not remember that they are indeed valid TLDs and might incorrectly use .com/.org instead of .coffee (or alike). I know if I gave my mother a website with a new TLD, she would end up typing "something.coffee.com" or just "something.com" instead of "something.coffee".
Does anyone have any research regarding these new TLDs? Should we continue registering .coms and .orgs? In regards to this question, won't the new TLDs make the domain lengths longer?