There are lots of kinds of spyware, different types of spyware (Learn Alot more Here) but the most common type is adware. Adware is a type of software application that is used to track a user’s online activity and display targeted advertisements. This type of spyware is typically bundled with other free software application. Other common kinds of spyware consist types of spyware [Musescore explains] Trojans, spyware is an example of keyloggers, and rootkits.