Take a break of 5 minutes for every 30 minutes of work
Stretching techniques to alleviate muscle soreness
Lighting should be appropriate, avoid sun glare on the screen
Enlarge print, change contrast for better viewing
Comfortable viewing distance of 450-700mm
Sound levels from earphones to a minimum to prevent noise exposure
Keep elbows close to body
Head and neck in a relaxed position
Use the privacy settings to restrict access to your site
Be cautious about posting information that could be used to identify you or locate you offline. Do not use your name, address, birth date, phone number, the name of your school, sports team, clubs, or where you hang out.
Make sure your screen name doesn’t say too much about you. Otherwise it may be possible to combine clues to work out who you are and where you can be found. Don’t use screen names of a flirtatious nature.
Post only information that you are comfortable with others seeing — and knowing — about you forever.
Remember that if you post your photo, it can be altered and broadcast in ways you may not be happy about.
Flirting with strangers online could have serious consequences. Because some people lie about who they really are, you never really know who you’re dealing with.
It is dangerous to meet a new online friend in person because they may not be who they say they are.
Trust your gut instincts if you have suspicions. If you feel threatened by someone or uncomfortable because of something online, tell an adult you trust and report it to the police and the social networking site. You could end up preventing someone else from becoming a victim.
Messages containing identifying information. Mentioning in posts that you will meet friends at a shopping mall, or that you enjoy visiting a particular park or beach or even when you celebrated your birthday or friends birthday. All this information can be used to steal your identity.