#ff is the same as (short for) #followfriday.2009-05-08 00:00:001243641http://tagdef.com/ffevery friday you can use #followfriday (#FF) to suggest people to follow.2010-05-28 17:04:37726332http://tagdef.com/ffUsing #ff (or #followfriday) in a tweet along with 1 or more @names means you recommend those people as worth following.2010-10-29 08:40:26510216http://tagdef.com/ffFollow Friday2010-04-09 14:54:14256180http://tagdef.com/ffRecomendacion que haces a tus seguidores acerca de una persona que deberian seguir,2010-08-18 03:25:506019http://tagdef.com/ff