KnowEm AlternativesSocial Networks and other similar apps like KnowEm

An "avatar" is an image that represents you online—a little picture that appears next to your name when you interact with websites.

Instant Username Search is a free and open-source web app to check if a username is available on services like Facebook, Instagram, Reddit, GitHub and much more. It's available online or as a self-hosted app.

Use Namechk to see if your desired username or vanity url is still available at dozens of popular Social Networking and Social Bookmarking websites. Promote your brand consistently by registering a username that is still available on the majority of the most popular sites.

The global brands of today all seem to have catchy names yet for bootstrapped startups; these short names are expensive to invest in and hard to come by. But a brandable name is not necessarily a short name. Brandables are creative and sticky, but most of all, unique.

Elon Musk tweeted that Twitter is finally going to purge inactive accounts. This means that you can finally get your desired handle, but you have to be quick!