To be clear: my DD's are facebook friends with sister, that is the only contact they have with her and she rarely posts any news. Both my DD received a private message through FB from Sis with the address for niece with the message to give it to me (which is Sis' address by the way).

(perhaps the happy couple are living with her)
I have NO contact with Sis - mail, telephone, facebook or email.
Niece posted her wedding information on Facebook and it was shown on another relative's page or I wouldn't know at all. Niece has not posted any gimme type news but did post that they are still planning a big white wedding (BWW) for later.
My sister is toxic and worse if that is possible. I am kinda surprised she has not sent out wedding announcments with the address for gifts as a gimme request but then I shouldn't be shocked at anything she does or does not do by now.
Niece and I do not have a rel
ationship, we did until a few years ago and she defriended me on FB after Christmas (again, never heard the words thank you cross her lips for the Christmas cash) so as far as I am concerned she cut me off. My SIL says she seems pretty spoiled and entitled but I have not seen her so I wouldn't have a clue. She has been in our town several times and always promises DD's to contact them so they can get together but never has, so again, I feel like she cut us off.
On another note, another niece is planning a big wedding later in 2013 that we have all been sent std's for. This is my brother's child and she is very much aware of the animosity towards her aunt and has already mentioned that she will NOT be inviting that branch of family. She says that all the kids have turned out like their mother and she is not interested in having the special snowflake gimme pigs at her event.
It's so sad to lose family members to "the dark side" but there really was a line in the sand three years ago and Sis jumped up and down on it...I still miss the sister she used to be.