I did a post last August in which I listed all the professional pelotaris and associated personalities who use Twitter. Since then, several more have joined the fray and with Twitter ever more important as a medium for spreading news and results, I thought it high time for an update!
Pelotaris
Fernando Goñi (@fgoni; you can also follow the feed for his hotel, @QuintoReal)
Pablo Berasaluze (@pberasaluze8)
David Merino (@davidmerino21)
Gorka Esteban (@gorka_ezka)
Cecilio Valgañon (@cevalgan)
Alexis Apraiz (@Apraiz2)
Aitor Zubieta (@AitorZubieta; this is a secure account to which you have to send a follow request)
Ladis Galartza (@galartza)
Ibai Zabala (@ibaizabala1)
Alvaro Untoria (@alvarountoria)
Peio Martinez de Eulate (@pmeulate)
Miguel Merino (@miguel_vdt)
Julen Retegi (@retegibi)
Inaki Iza (@izarazua)
Jon Jaunarena (@jonjaunarena)
Joseba Ezkurdia (@josebaezkurdia)
Victor Esteban (amateur, @victor_ezka)
Arkaitz Peñas (amateur, @alcaldearkaitz)
Empresas
Asergarce (@asegarcepelota)
ASPE (@ASPEpelota)
Pelota media and miscellaneous others
Carlos Zuluaga (@czuluaga; manista.com)
Jorge Elipe (@jorgelipe)
Xabier Euzkitze (@xabiereuzkitze)
Mondo Pilota (@mondopilota)
Bizkaia Fronton (@bizkaiafrontoia)
Arritxu Iribar (@arritxuiribar)
And follow me for updates from this blog (@AlbertinaPdC)

Ibai Zabala and Inaki Iza, tweeters both
Photo: mine