As for cross country skiers, professional racers average 15 miles per hour for continuous distances up 35 miles. Most top ski racers hit about 20 - 25 miles per hour on the flats, and 35 - 40 miles per hour on the downhills. Recreational cross country skiers tend to clock out at around 7-10 miles per hour.
adware (Noun). A software application that includes advertisements, which are displayed while the software is running. Developers use adware as a source of income and to keep the costs of the software down (usually making it free). Some adware programs can include spyware.
The defintion of spyware is a software program that secretly gathers personal information and sends it without the user's knowledge from a computer when it is online. An example of spyware is a adware software program that records a user's keystrokes on online advertisements and reports them to a research or ad firm.