Two projects have kept me busy during the last two years:
Liberty.me, a private online community, and FEE.org, a 70 non-profit educational organization. While both share a free-market philosophy, they have very different business models, and so very different designs and technology stacks.
Liberty.me is build with WordPress and an open-source stack, whereas for FEE.org I went with Umbraco and a Microsoft stack. Despite this, they have a similar cloud architectures.
Please share your suggestions or let me know if you would like more details about these configurations: