Need help on writing an email

Hey Guys & Gals
How is it hanging?:wink2:
http://media.comicvine.com/uploads/2...e160_large.jpg

My friend and I are working on a project we call it ScienceColab(science + collaboration).
It's a web tool that helps scientists share and collaborate online.

so here's the situation, we want to contact few scientists
through their email address to get their feedback on SC.
but we're not sure how to write the email in an effective way
so that we gather as many feedback as possible and also not be viewed as spam.

*I'm not asking you to write the whole letter but the
introduction

as to why we choose these scientists, it's because they were
featured in an article called "scientists embracing the openness"
so obviously they're our target market

^______^
Thank you so much

Hey ^^
your program idea is gr8, I hope you guys make it
I wish I could help you but personally i don't know how to write such e-mails
but I do have suggestions
1. Try Google for e-mail tips
2. Try Yahoo Answers (Its very help full)o
3. Ask in foreign English forum

I hope some one here can help you but you mustn't wast your time by waiting

best of luck to you and to your partner

YA! why didn't I think of it before? :D

and thanks for your comment ,
^__^ it's really nice....