Twitter has become quite the hotbed of chatter about functional programming over the past few months, as a substantial number of pretty well known FP people have either been present all along or have signed up recently and started following each other.

Here is a list of people I know about who tweet about FP on a semi-regular basis, along with what I think are their main interests. If you want to see the list extended or modified, let me know.

Bryan O’Sullivan (bos31337) - Haskell
Chris Smith (aChrisSmith) - F#
Alex Payne (al3x) - Scala
Brandon Allberry (allberry_b) - Haskell
alpheccar - Haskell
Andre Pang (andrepang) - Erlang
Arnar Birgisson (arnarbi) - Haskell
Brad Anderson (boorad) - Erlang
Chris Eidhof (chriseidhof) - Haskell
Conal Elliott (conal) - Haskell
Conrad Parker (conradparker) - Haskell
Dean Wampler (deanwampler) - Scala
Don Stewart (donsbot) - Haskell
Dave Pollak (dpp) - Scala
David MacIver (DRMacIver) - Scala
Eelco Lempsink (eeclo) - Haskell
Bob Ippolito (etrepum) - Erlang
Galois, Inc. (galoisinc) - Haskell
Jake McArthur (geezusfreeek) - Haskell
Pepe Iborra (hate_pick_pick) - Haskell
John Goerzen (jgoerzen) - Haskell
John Kalucki (jkalucki) - Scala
Eugene Kirpichov (jkff) - Haskell
Jorge Ortiz (jorgeortiz85) - Scala
Joseph Holsten (josephholsten) - FP
Justin Sheehy (justinsheehy) - Erlang
Kazuya Sakakihara (kazooya) - Haskell
Kevin Smith (kevsmith) - Erlang
Dave Fayram (kirindave) - Erlang
Edward Kmett (kmett) - Haskell
Kevin Scaldeferri (kscaldef) - Erlang
Matthew Podwysocki (mattpodwysocki) - F#, Haskell
Mark Reid (mdreid) - Haskell
Mickaël Rémond (mickael) - Erlang
Andy Adams-Moran (morabbin) - Haskell
Neil Bartlett (njbartlett) - Haskell
Nick Gerakines (ngerakines) - Erlang
Paul Brown (paulrbrown) - Haskell
Paul Snively (psnively) - OCaml
Rusty Klophaus (rklophaus) - Erlang
Robey Pointer (robey) - Scala
Shae Erisson (shapr) - Haskell
Sigbjorn Finne (sigbjorn_finne) - Haskell
Dan Piponi (sigfpe) - Haskell
Spencer Janssen (spencerjanssen) - Haskell
Steve Jenson (jenson) - Scala

Isaac Jones (SyntaxPolice) - Haskell
Manuel Chakravarty (TacticalGrace) - Haskell
Tom Moertel (tmoertel) - Haskell
Thomas Sutton (thsutton) - Haskell
Joel Reymont (wagerlabs) - Erlang
Creighton Hogg (wchogg) - Haskell
Joe Williams (williamsjoe) - Erlang
Yariv Sadan (yarivs) - Erlang