Please recommend an online university for social sciences?

I am a working mother of two (13 & 3mo) i am thinking about quitting my job and staying home with my new baby because the only people that seem capable of caring for my child are asking for more money then i make! that being said i need a school that i can attend on my time (online is best) and cheap (due to us becoming a one income household) i have worked for the non profit sector since i was 18 ACS, Head Start etc. so a school that offers degrees along these lines is obviously preferable. I would like recommendations to be from actual experience either first hand (you were a student of the Uni) or you know someone who was. i will also appreciate any warnings against problematic schools. so far the only school i have heard of (from a friend) is Walden and although she recommends it i remember her sounding frustrated with them quite often :-) Any and all feedback is welcome please feel free to be detailed! Thank you in advance to those who took the time to try and help :-)