No Follow - Would it conserve "google juice"

I have some "feeder sites" whose purpose is to attract traffic & google juice to build my main site: For example: My learning games for kids site exists not just as a public service, but to gather google juice (and traffic) and send it to Time4Learning.com.

- Does the google juice dissipate across the the links to other sites where the games exist?
- Would a no-follow attribute solve this?

The Nofollow Attribute - This is quoted from a search engine strategies article on no follow

The new attribute is called "nofollow" with rel="nofollow" being the format inserted within an anchor tag. When added to any link, it will serve as a flag that the link has not been explicitly approved by the site owner.

For example, this is how the HTML markup for an ordinary link might look:
Visit My Page

This is how the link would look after the nofollow attribute has been added, with the attribute portion shown in bold:
rel="nofollow">Visit My Page

This would also be acceptable, as order of elements within the anchor tag makes no difference:
Visit My Page

This is quoted from a search engine strategies article on no follow