Links are a connection from one place on the Internet to another, usually a webpage, image or file. Websites use links for several purposes. You can link your website to another website so that both of you can enjoy increased traffic simultaneously. A website can show advertising links on their web pages so that they can get extra income. Some companies sponsor links on other successful web pages so that they can increase web traffic to their site.
Spyware is software designed to monitor computer activities and makes use of personal information. At a minimum, this may be used to monitor browsing habits and tailor advertising delivered on pages; on the other hand it may also be used to gather private details which may be used for identity theft. Other names for spyware or related programs include; malware, crimeware, PUPs (Potentially Unwanted Programs) , adware, dialers, keyloggers, or spybots.