When an indie author (and some published authors) start out they do everything on their own. They write, deal with emails, answer questions, handle marketing, make appointments to do appearances, research information, maintain social profiles, social pages, blogs, websites, double check to make sure needed information is sent and received by people holding contest, events, etc. And they do this DAILY. So once you break it out there is a lot of work that gets in the way of an authors writing time. And can really exhaust them.
So Authors are starting to turn to Virtual Assistants. Or I like to call them Author Assistants. These are the people behind the curtain that help free up more of the Authors time. The Assistant is normally the one who contacts and keeps in contact with marketing, with event host, with contest holders, answers questions on social sites or emails. They forward important information to the Author but a large amount of work can be handle by them without disturbing the Author at all.
This does give Authors more free time and opens them up to get more writing done and concentrate on why they became Authors to begin with. That joy of writing. But be careful if you use an Assistant that you don't lose touch with your readers completely. I do know some Authors who have lost readers respect or love because they now have their Assistant doing EVERYTHING that ever connects to the reader. The readers don't mind assistants but they do want to associate with the author too. They want to know you as an author still care about them and still appreciate them. So if you have an assistant or are thinking of getting one remember to not make that assistant an impassible wall between you and your reader.
That being said. You can find Author Assistants in multiple ways. Google search, ask on facebook someone is bound to know through connections, or ask around at events.
(Assistants are not free. Assistants vary by price and experience. Please be sure to do research and ask for portfolio's or references before hiring an unknown Assistant.)