This site: http://www.fitsugar.com/Tips-Using-Rowing-Machine-3019487, offers you a great resource for tips for using a rowing machine if you are a beginner.

Vlite is a software help resource site. They have site videos and tips on software. They can also check your online habits by tracking the pages you visit most.

There are a number of online sites which contain tips on how to become an effective sniper in this popular video game. The site "GameFAQs," for example, is a great resource.

To determine if a resource might be useful, you will need to evaluate the information in the resource and decide if it is valid, useful, accurate, reliable, and relevant. You should also check the date of publication.

No such site yet. But you can get your dating tips and advice anywhere and apply to your date.