The Big Sib/Little Sib arrangement is, to quote Niamh, 'so new members can interact with some of the members who have been here a while and are able to ask questions and start to make new friends within the group.' In a nutshell, older members of the PPC community can sign up to be Big Siblings; any newbie who wants a guaranteed friend and advisor can ask for a Big Sib to adopt them, thus becoming a Little Sibling until they're ready to go it alone.