Your question; "By the way, how does one obtain an invitation to the page you mention for Inishbofin Descendants?"
First. Are you on Face Book?
If you are then 'Friend' someone you know that is in the page there and ask them to "invite" you in.
You were on Bofin in 2002. Did you meet Marie Coyne? Mary Day Lavelle(Lapwing B&B)? Both are on FB. Also myself, Tony Tierney, Tommy Burke. Quite possibly someone you met while on Bofin. There are almost 400 people in the Inishbofin Descendants" FBPage.