Permalink problem: atleast I think it is.

Why do some of my URLs look like this:
http://ragingalcoholic.com/author/markneidert/page/2/

and others look like this:
http://ragingalcoholic.com/jellinek-species-alcoholism/

I have told my permalinks to use "post name" so why am I recently getting the top URL. the one with "author's name" in it.

Could Google+ have anything to do with it?

Can someone please tell me how to get domain/post name URLs working again.

Thank you for considering my problem.

go for the last option and use /%postname%/

I also have a similar problem
My posts urls automatical gecommes domain.com/post-name/social-media-links
Like abc.com/asdf/www.facebook.com