Spokk - Get your creations or ideas for blogs, designs, art, music, photos, YouTube videos or anything...
Support Hero - Educate your customers through self-help support
Resource Center by UserGuiding - All your product, marketing and help materials in one place
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
botwick - Build your own SMS-based text bot
HelpSite - HelpSite is a simple service to help your setup the perfect support centre or help site.