My biggest peeve? Other than technical difficulties, I would say the necessary time and effort to establish yourself as 'reputable'. Basically, I am referring to affiliate marketing; it is a busy area and unfortunately flooded with blacklist type tactics and products not worth reading about. When your average person is inundated with such emails, tweets, etc., it tends to discredit the entire field of marketers .... 'they are all liars, they are all just out for my money', etc. It takes time and effort, quality content, etc. to build trust, confidence and establish dignity with your readers/prospective customers or clients. I may not always like Google updates and the like, but at least a lot of this is slowly being addressed. I have not been one to use 'pop ups' and am happy there is finally being something done about the outrageous ways they are being abused.