Evi!

Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer.

Quora.com is a question/answer service allowing users to pose questions that other users can answer, each question and answer can have comments, each users can write one individual answer and there can be a summary answer.Each user can choose a description explaining their area of expertise or questions and answers can be anonymous.Questions and answers are searchable.

Startups get your queries answered by the World's Top Investors and Entrepreneurs. Startups + Investors +Entrepreneurs Connect.

Yahoo! Answers is a way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Bitfortip offers a unique use case thanks to Bitcoin.

Google Assistant is a virtual personal assistant developed by Google and announced at its developer conference in May 2016. Unlike Google Now, Google Assistant can engage in two-way conversations.

vokul is the first 100% handsfree app for your iPhone, iPod touch, and iPad that allows you to DJ music and podcasts, dictate text messages, and call contacts in your address book, without pressing any buttons! Just say "hey vokul," and speak your command.

Braina Virtual Assistant is an intelligent personal assistant software for Windows PC that allows you to interact with your computer using voice commands in English language.

Now Workplace is the new way to work. It’s a personal, digital assistant that proactively sends actionable Cards about relevant changes and upcoming events, understands voice commands, and offers an enterprise-wide search.

With Dragon Go! you can do more in less time like buy movie tickets as you walk into the theater, go shopping at local boutiques while you wait for your nails to dry, settle a bet at the breakfast table on the square root of Pi, or plan and invite guests to that night’s happy hour – all with just one ask of Dragon Go!