Topsy.com, launched last week, is a brand new search engine focused exclusively on Twitter content. Like Google, it presents its results based on popularity metrics, namely the popularity or influence ...

For many people Google is search — they’ve simply never considered an alternative. But there are plenty of search engines other than Google, offering benefits such as increased privacy, environmental ...

A start-up called Perplexity shows what’s possible for a search engine built from scratch with artificial intelligence. By Kevin Roose Kevin Roose used the Perplexity search engine for several weeks ...