I figure a lot of us could benefit from this, but lets start naming web apps that illustrate good web design. I'll start off to name a few...
1) basecamphq.com - considering all SaaS's derive from here 2) onehub.com 3) lighthouseapp.com
1) basecamphq.com - considering all SaaS's derive from here 2) onehub.com 3) lighthouseapp.com