Twitter has launched a "report tweet" feature aimed at helping people who receive abusive messages.
A number of womern were recently targeted on the site, including Walthamstow MP Stella Creasy. Over one hundred thousand people signed a petition to get the site to improve its procedures for dealing with abuse.
A man who was arrested after Walthamstow MP Stella Creasy was threatened on Twitter, has been released on bail. She was sent violent messages after supporting a campaign for a woman's face to appear on 10 pound banknotes.
The man was taken to a Bristol police station and later bailed to attend a central London police station in late September.
Walthamstow MP Stella Creasy has welcomed an apology from Twitter's UK boss after she was subjected to abuse on the social networking site. Tony Wang insists the company is doing all it can to stop offensive messages. Nick Thatcher has the story.
Caroline Criado-Perez, who came under sustained attack on Twitter after running a successful campaign to have a woman's picture placed on a new bank note, has welcomed Twitter's pledge to do more to tackle trolling and abuse on the platform, but said they could have acted quicker.
While I'm pleased they're listening, it's taken Twitter a week to come up with this.
Twitter's 'report abuse' button on the iPhone application goes through to the old reporting form - what we're looking for is an overhaul of the system which sits behind the button.
The current process is lengthy, complicated and impossible to use if you're under sustained attack like I have been.
Right now, all the emphasis is on the victim, often under intense pressure, to report rather than for Twitter to track down the perpetrator and stop them.
I am, of course, pleased that they are taking on new staff. The hard facts are that this will take time, investment and properly trained and paid staff - but it's crucial they get this right.
Police have revealed they are investigating allegations by eight people over abuse received on social networking site Twitter.
The Met said its e-crime unit was looking into the claims, three of which are incidents outside of London.
The force said: "Whilst outside PCeU's cyber operational remit, the MPS has taken the decision to centralise the individual investigations, including three that are outside London, to make the most effective use of resources avoid duplication by separate."