MOTIVEMOS.com - Latin American start-up needs creative logo

Motivemos.com

I am the owner of http://www.novoholdings.com, a company that sells branded gift items throughout latin america via numerous websites.
Motivemos.com is a new project for us, with the new site we plan to expand our line of branded gifts to sell them to human resource departments to use as empoyee awards. Motivemos.com's translation in english is "Let's Motivate!", and we want to become a leading resource of motivational ideas and solutions.

Principally human resource department managers in large and medium size businesses.
We want to project our expertise in employee motivation and create a site that any HR manager will want to explore and pull ideas from.

We need a logo that is inspiring but corporate too, as we will be selling to manager level clients.

Stars, people cheering or celebrating, a trophy are welcome elements for the logo, although they have been used by other businesses with similar business models.
I think colors should be fresh, and i personally feel blue represents success (like a blue ribbon).

The logo should have two versions, with and without the ".com".

We will need a version of the logo in black and white as well.

here are some sites to compare with:
http://www.successories.com
http://www.perks.com