Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician (CMT). Jonathan Kirn / Getty Images A trade signal is a trigger for action, either to ...

An encrypted instant messaging system from the Signal Technology Foundation. Introduced in 2014, Signal uses telephone numbers and cellular service similar to text messaging. It also supports voice ...

Google published a blog post about fighting piracy that linked to a PDF report. The PDF report discusses a ranking demotion signal. Google’s report reveals that it uses this demotion signal to rank ...