According to you later edit, you actually want to display information from the User Profile Services. "About me" is a field of the User Profile.
Yes, there is a webservice, which can return you User Profile data. It is located at
http://<site URL>/_vti_bin/userprofileservice.asmx. Here is a code sample, which displays you all the User Profile properties. It assumes, that you have added the above web service as a Web reference to your Visual Studio project:
static void GetUserProfilePropertyData()
UserProfileWebService.localhost.PropertyData properties =
for (int i = 0; i < properties.Length; i++)
But if your code runs on the Sharepoint farm, I think you should consider accessing the User Profile Service by the object model.
using ( SPSite site = new SPSite("site url"))
ServerContext context = ServerContext.GetContext(site);
UserProfileManager profileManager = new UserProfileManager(context);
UserProfile profile = profileManager.GetUserProfile(@"domainuser");
// you got user profile object. now you can use any property of it.
// I think for the AboutMe field it would be
var aboutMe = profile["AboutMe"] as string;
I hope this is what you were looking for.