Over 12,000 people have signed a petition calling for Twitter to have a "zero tolerance policy on abuse" and "to recognise its current reporting system is below required standards".
The petition was set up after feminist campaigner Caroline Criado-Perez was allegedly targeted with violent abuse and rape threats.
Criado-Perez successfully drove the campaign for women other than the Queen to feature on English banknotes.
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Nearly 38,000 runners will hope to complete Sunday's London Marathon making it the biggest event in its 35-year history.
Rain across central Britain with longer, intense downpours with thunder in places this evening. A lucky few will stay sunny and dry.
Planning on going to the London Marathon tomorrow? Read our handy guide first!