Sorry if this has already been posted, but I came across it on facebook and thought it might be of interest here.
Dr. Jack Newman is doing a survey currently to investigate what happens when you wean from breastfeeding, especially (but not limited to) if you feed past 1 year.
Link to the survey is here: www.cafemom.com/group/325/forums/read/18043637/Moms_who_have_weaned_Dr_Jack_Newmann_survey
I think the results could be really interesting and am looking forward to seeing what is found out :)