WebPurify - Profanity Filter, Image Moderation and Video Moderation Services Made Easy.

Block Together - A useful tool which helps you block trolls on Twitter.

Conversocial - Conversocial is The Digital Care Platform for Social Messaging, creating a clear digital path for brand and consumer engagement.

Secateur - Use Secateur if you want to temporarily or permanently block or mute (or both block and mute) a Twitter account and all its followers.

Sparkcentral - Good old fashioned customer service, delivered in a high tech way

Moderate - Identify, mute, and block trolls in your Twitter feed