Gina,
I referred everyone to my parents as well, who stayed for a month (god love 'em, but it was great when they went home). They were also the gate keeper of calls and filling people in. It worked for them as they felt like they were doing something for me, when otherwise they felt pretty helpless.
Be prepared for visitors in hospital. It was an interesting eye opener to see who came, and more interesting who didn't. I also had someone keep a list of who sent cards, flowers, dvd's books, etc., so I could send thank you cards later on.
I ultimately did a few posts, including some pictures, and commented that I appreciated all the well wishes, but I was quite tired and recuperating, so they would have to forgive any unreturned calls. It worked pretty well.
Good luck to you!