•The website has no contact information. A legitimate business has a way for you to reach them. Look for an "About" page that offers information on the company or CEO, along with a phone number, address, or contact email. (Try calling the number to see if anyone answers.) A website with only a contact form and no other way to get in touch with an actual human is suspicious.
With nearly 100,000 different custom extensions both free and paid available in Google Chrome's marketplace, there's a huge opportunity for creating a useful extension for people to use while browsing the web as a low effort business idea. One of my favorite Chrome extensions, Yet Another Mail Merge, which enables you to send bulk customized emails from within Gmail, gives you 50 free credits to send emails and gives you the chance to upgrade to a paid account to unlock more sending—a great upsell for the people who are getting value from the extension. Even free Chrome extensions like SVRF Tabs by SVRF, which replaces your new tab with stunning VR and 360º images, have the potential to bring in new users and eventually drive revenue for the startup's core business. Another fun example from a friend of mine, Kathleen Garvin, is Hide images with NOPE, a Chrome extension that hides images on the web pages you're browsing—to help eliminate distractions and keep you from seeing images (like those of certain politicians) that you may want to hide. This side business idea is particularly great because it also allows you to showcase your development skills—which can be put to work as an adjacent side business idea on a freelance basis alongside the Chrome extensions you launch.
Take the time to develop your skills at either making your own music, or becoming a pro at mixing, and your side business idea of dj-ing local events could turn into a much bigger endeavor. Though you'll first need to command a solid knowledge of sound design, mixing and music production before expecting to land your first gig with this business idea, as developing an entirely new skill set is not for the faint of heart.
What does that mean for you? It means Nielsen will pay you $50 a year to keep their app on your favorite internet browsing device. The app itself collects statistics on your internet usage anonymously, so you never have to worry about any data being linked to you. And the best part is, the app takes up barely any space and doesn’t slow down your phone or tablet at all!