ProTexting - ProTexting offers mobile marketing tools for businesses to communicate with their audience via SMS & MMS campaigns.

Stack Overflow - Community-based Q&A part of the Stack Exchange platform.

Clickatell - Simple, reliable mobile messaging cloud.

The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.

ShoutOUT - All in one business texting tool to send personalized alerts, promotions, reminders, short links and marketing campaigns, for any SMEs (hotels, restaurants, education, non profits, Woocommerce, banks, healthcare, agencies, supermarkets, weddings)

Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.