Both Hartley and Bukarewicz have denied a single charge that they conspired to cause misconduct in a public office.
Both were arrested on suspicion to corrupt and of conspiracy to cause misconduct in a public office.
They were all arrested on suspicion of corruption, conspiracy to commit bribery and conspiracy to cause misconduct in a public office.
Goodman has been charged with conspiring to cause misconduct in public office after a second police inquiry, Operation Weeting into hacking, was opened in 2011.
Among the journalists acquitted of conspiring to cause misconduct in public office were the former News of the World editor Rebekah Brooks, now chief executive of News UK, Rupert Murdoch's publishing operation.
Hall's girlfriend, Marta Bukarewicz, a Polish administration assistant whose bank account was used for more than £13,000 of the payments – was also found not guilty by the jury of a conspiracy to cause misconduct in public office.
The third arrest on Thursday was of a 31-year-old man at his home in Croydon on suspicion of conspiracy to corrupt and conspiracy to cause misconduct in a public office.
A second man, 37, was arrested at his home address in Morden, Surrey, on suspicion of corruption, on suspicion of conspiracy to commit bribery and on suspicion to cause misconduct in a public office.
