The most popular TD on facebook is...

Independent North Tipperary TD, Michael Lowry is the most popular TD on facebook, with Sinn Fein's Pearse Doherty in 2nd place and Fianna Fail's Micheal Martin in third. At the time of blogging, Lowry has 5,001 facebook friends, while Dohery has 4,267 and Martin has 4,070.
The least popular TD's on facebook are Michael Finneran, Sean Fleming, Thomas McEllistrim, James McDaid, Denis Naughten, John O’Mahony, Tom Sheahan and Sean Sherlock who have no fans on facebook.
Many TDs are very active on facebook, while some don't put any work into it, but are automatically given their wikipedia entry as a facebook page.
Here is a full list of the TDs who are on facebook and just how active they are.

Barry Andrews
Chris Andrews
Sean Ardagh
Bobby Aylward
James Bannon
Joe Behan
Niall Blaney
Aíne Brady
Cyprian Brady
Johnny Brady
Pat Breen
Tommy Broughan
Richard Bruton
Ulick Burke
Joan Burton
Thomas Byrne
Dara Calleary
Joe Carey
Deirdre Clune
Niall Collins
Margaret Conlon
Paul Connaughton
Sean Connick
Noel Coonan
Joe Costello
Mary Coughlan
Simon Coveney
Brian Cowen
Seymour Crawford
Michael Creed
John Cregan
Lucinda Creighton
Ciarán Cuffe
John Deasy
Jimmy Deenihan
Jimmy Devins
Pearse Doherty
Timmy Dooley
Andrew Doyle
Bernard Durkan
Damien English
Frank Fahey
Frank Feighan
Martin Ferris
Michael Finneran
Charles Flanagan
Terence Flanagan
Sean Fleming
Beverley Flynn
Eamon Gilmore
Paul Gogarty
John Gormley
Noel Grealish
Mary Hanafin
Sean Haughey
Brian Hayes
Tom Hayes
Jackie Healy-Rae
Michael D. Higgins
Maire Hoctor
Phil Hogan
Brendan Howlin
Paul Kehoe
Billy Kelleher
Brendan Kenneally
Michael Kennedy
Enda Kenny
Tony Killeen
Séamus Kirk
Brian Lenihan
Conor Lenihan
Michael Lowry
Kathleen Lynch
Ciarán Lynch
Martin Mansergh
Micheal Martin
Padraic McCormack
James McDaid
Thomas McEllistrim
Shane McEntee
Dinny McGinley
Mattie McGrath
Michael McGrath
Finian McGrath
John McGuinness
Liz McManus
Olivia Mitchell
John Moloney
Arthur Morgan
Michael Mulcahy
Denis Naughten
Dan Neville
M. J. Nolan
Michael Noonan
Caoimhghín Ó Caoláin
Éamon Ó Cuív
Seán Ó Fearghaíl
Aengus Ó Snodaigh
Darragh O’Brien
Charlie O’Connor
Willie O’Dea
Kieran O’Donnell
John O’Donohue
Fergus O’Dowd
Noel O’Flynn
Rory O’Hanlon
Batt O’Keeffe
Jim O’Keeffe
John O’Mahony
Mary O'Rourke
Brian O’Shea
Maureen O’Sullivan
Christy O’Sullivan
Jan O’Sullivan
Willie Penrose
Sean Power
Peter Power
Ruairi Quinn
Pat Rabbitte
James Reilly
Michael Ring
Dick Roche
Eamon Ryan
Trevor Sargent
Eamon Scanlon
Alan Shatter
Tom Sheahan
Sean Sherlock
Róisín Shortall
Brendan Smith
Emmet Stagg
David Stanton
Billy Timmins
Noel Treacy
Joanna Tuffy
Mary Upton
Leo Varadkar
Jack Wall
Mary Wallace
Mary Alexandra White
Michael Woods

1128 fans
753 friends
290 fans
6 fans (wiki page)
4 fans
12 fans (no picture)
388 friends
4 fans (wiki page)
34 fans
1 fan (wiki page)
Doesn't share
7 fans (wiki page)
1,168 fans
379 fans
2,071 fans
doesn't share
964 fans
doesn't share
224 fans
doesn't share
398 fans
3 fans (wiki page)
doesn't share
doesn't share
383 fans
15 fans
1,188 fans
1,699 fans
27 fans (wiki page)
348 fans
430 fans
1307 friends
641 fans
5 fans (wiki page)
171 fans
76 fans
4,267 fans
doesn't share
547 fans
doesn't share
27 fans (wiki page)
492 fans
754 fans
3,855 fans
0 fans (wiki page)
1,700 fans
437 fans
0 fans (wiki page)
doesn't share
1,448 fans
doesn't share
508 fans
589 fans
671 friends
645 fans
934 friends
1,797 friends
25 fans (wiki page)
1,319 fans
doesn't share
1,069 friends
8 fans (wiki page)
1,574 friends
14 fans (wiki page)
418 friends
491 friends
2,548 fans
28 fans (wiki page)
7 fans (wiki page)
23 fans (wiki page)
25 fans (wiki page)
5,001 friends
953 friends
654 friends
18 fans (wiki page)
4,070 friends
doesn't share
0 fans (wiki page)
0 fans (wiki page)
442 fans
21 fans (wiki page)
1,103 friends
279 friends
22 fans (wiki page)
1,634 friends
9 fans (wiki page)
244 fans
149 friends
10 fans (wiki page)
138 fans
0 fans (wiki page)
454 friends
1 fan (wiki page)
2 fans (wiki page)
8 fans (wiki page)
1 fan (wiki page)
6 fans (wiki page)
2,142 friends
402 fans
400 fans
3,999 fans
13 fans (wiki page)
1 fan (wiki page)
892 friends
740 friends
367 fans
10 fans (wiki page)
2 fans (wiki page
0 fans (wiki page)
9 fans (wiki page)
5 fans (wiki page)
17 fans (wiki page)
220 fans
567 fans
64 friends
11 fans (wiki page)
216 fans
32 fans (wiki page)
117 fans (wiki page)
17 fans (wiki page)
20 fans (wiki page)
2617 fans
15 fans (wiki page)
15 fans (wiki page)
4 fans (wiki page)
29 fans (wiki page)
0 fans (wiki page)
0 fans (wiki page)
8 fans (wiki page)
6 fans
12 fans (wiki page)
doesn't share
2,493 fans
27 fans (wiki page)
97 fans
6 fans wiki page)
258 fans (wiki page)
4 fans (wiki page)
883 friends
6 fans (wiki page)
3 fans (wiki page)

Picture source

The most popular TD on facebook is...