I @replied to Image Group that I thought their work on the site was great. But I wanted to mention the site here on my blog as well.
In addition to a gorgeous and inviting design, the site integrates various social media tools that are increasingly a must in Web sites from a PR perspective. There is also a heavy emphasis on storytelling, which many online PR experts tout as the key way to cut through Internet clutter and engage people. I especially like the smart breaking down of IA's "partners" (i.e. publics) as corporations, churches, etc. This way, people migrating to the site can see a specific and relevant way to engage as a donor, volunteer, or project partner.
Much discussion about PR focuses on corporations. But this site shows that nonprofit organizations, even large NGOs like International Aid, can and should look smart and sophisticated.