30 Seconds of Knowledge - Become a better developer, in every new tab.
Investopedia - Investopedia has a lot of information to share with business mind people.
Random User-Agent - Automatically change the user agent after specified period of time to a randomly selected one, thus...
Miraheze - Miraheze is a wiki farm (hosts wikis) for free and with no ads, it also provides custom domains...
know/how Product Managers - A weekly newsletter with 5 practical tweet-length PM tips
Fandom - The entertainment site where fans come first.