For those of you that like to keep your family life separate from your internet life, how do you do it?

Fluther is mine! I do not want my mom, dad or sisters to find it and find out every little detail about my life. This is my dirty little secret. ;)

I recently joined Facebook and have included many friends from grade school, high school and Fluther. I was hoping to keep it that way until one of my sisters found me on Facebook. I have no problem with this sister knowing my business, but she is friends with my other sisters and mom on Facebook and now they all want to be my friend. My mom keeps encouraging me to add all of these relatives that I hardly even know. They could easily find me on Fluther from Facebook and I do not want this to happen!

How do I tell my mom that I don’t want to be her “friend” on Facebook when my sister is willing to be her friend? I feel like the bad daughter. Any advice? Do I just give in?