reCAPTCHA - reCAPTCHA is a free security service that protects your websites from spam and abuse.
Wildcard - Discover, connect and meet people at communities
scr.im - Don't share your email on public sites.
Shapr - A completely free way to build your professional network.
hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
LetsLunch - Do more with your lunch hour. Meet new people.