Add info to the site like the one proposed by the PSF

[dpshelio]

On the PSF there's a template for orgs with certain stuff that should appear on the site

For example,

Tell the students a bit about your organization. Here's some questions you might want to answer:

• What software are you creating?
• Why is it interesting?
• Who uses it?
• What languages is it written in?
• How is it going to change the world?

[Cadair]

We should have a better blurb on the home page, and a section about each member org.

[dpshelio]

We've got the members page ready. Still, they could be more descriptive following these points...