Thank you for your question.
For the first age range--
Burst Media Online Insights
"Among teens who go online
from home, friends? homes,
libraries and other locations
outside of school, fully one-
third (37.4%) say they spend
three or more hours per day
on the Internet."
17.9% say they spent between two and three hours online daily.
25.1% say they spend one to two hours online.
19.6% say they spend less than one hour online per day.
Boys spend a bit more time than girls do on the Net... but junior high
girls spend more time on the Net than junior high boys.
Here is more detailed information on teenagers:
(Information from the PEW Internet Group
87% of US teens aged 13-17 use the Internet, up from 73% in 2000. 66%
of adults us e the Internet, up from 56% in 2000.
51% of teenage users go online daily, up from 42% in 2000.
81% of teen internet users play games online, 76% look for news
online, 43% have made online purchases, and 31% get health information
online. 57% use it to learn about possible colleges to attend. 30%
try to find job information.
13% of teens do not use the Internet. Half of that group have used it
before but have stopped.
Almost all teens with households making more than $75,000 are online,
most with broadband access.
64% of all teens use instant messaging, and half of that group, 32%,
use IM on a daily basis. 75% of those who use the Internet use instant
messaging. 48% of teens who use instant messaging say they use it
5% of teens say they most often use email to communicate with friends.
24% prefer instant messaging.
50% of IM-using teens link to articles or picture in messages. 45%
use it to send photos or documents. 31% use it to send videos or
music. 29% of teens who use IM will use it to talk to their parents.
In seventh grade, 84% of teenagers are online. By senior year in high
school, that jumps to 94%.
"An average youth between ages 12-17
reports spending 10.3 hours a week with friends doing social
activities outside of school
and about 7.8 hours talking with friends via technology like the
telephone, email, IM or
What Teens Do Online: (from the Pew Internet & American Life Project:
Teens and Parents Survey, October-November 2004 survey)
Send or read email
Go to websites about movies, TV shows, music groups, or sports stars
you are interested in
Play online games
Go online to get news or information about current events
Send or receive instant messages
Go online to get information about a college, university, or other school
you are thinking about attending
Look for news or information about politics and the presidential
Buy things online, such as books, clothing, or music
Send or receive text messages using a cell phone
Look for health, dieting, or physical fitness information online
Look for information about a job online
Look for religious or spiritual information online
Look for information online about a health topic that?s hard to talk about,
like drug use, sexual health, or depression
To get the second statistics, one is most likely to find studies of
college students for that age.
"About one-third of 800 college students recently surveyed by Burst
Media say they use the internet more than 10 hours during a typical
week; 20.3 percent say more than 20 hours."
Here is a list of popular sites for college students:
Top 10 Sites for Students-- CNet
Here's a more general study encompassing a larger age range:
"Teens tune out TV, log on instead"
"Young people, ages 13-24, spend an average of 16.7 hours a week
online, excluding e-mail, compared to 13.6 hours watching TV. After TV
viewing, they listened to radio for 12 hours, talked on the phone for
7.7 hours and spent six hours reading books and magazines for personal
teenage internet use hours
teen spend hours internet
college students most popular sites
If you need any additional clarification before rating, let me know
and I'll be happy to assist you.