I have found for myself personally that building relationships online can be very frustrating. I find that as a submissive you must shift through many not so great people before you find the one person that you really connect with. One of my personal best judges on character is whether or not the person is willing to have a conversation with you that doesn't involve sex. I personally feel that in order for something like this to work out a person must be willing to know you on all levels. I cannot give myself to someone who does not or is not willing to get to know the whole me. Although if you are keeping it purely online that may not be as much of an issue as it would be in a real life situation.