I needed an invite for SS, as well, and it wasn't that long ago. It took somewhere around 4 days to a week to get my invite.
I'm going through the list following you all
Here's mine: http://scrapstacks.com/tammy-espino
I'm following everyone on here, too!
I am trying to get my scrapstacks going.. anyone else here on it and if so will you follow me.. I feel lonely here is me: http://scrapstacks.com/crazyT