As usual, for the last couple of days I've been looking for the website that could bring in some inspiration. Coincidentally collected website present clean, simple and sometimes minimal approach. All pleasant to the eye and simple to use.
Content matters
Plusmoins
White background, black text and blue headings combined into nice grid layout (see the CSS) which is consistent across the whole website. That combination reminds me delicious website (just my impression). The only one fanciest element is the content slider on the landing page.

Atlantic Southeast Airlines
Another website that is content oriented. Grid based layout combines red, gray and black content on the white background for the contrast. The whole package is well designed. Good looking headings use Cufon as font embedding technique.

Waner & Szakall
The website of that law office really stands out compared to other website within that industry. Single page website gives all the necessary information in a clear and pleasant way. Narrow layout works nice with images and typography solutions.

Show me your work
Chance Graham
The first thing what caught my eye was the colour scheme. For some reason I like the combination of dark/dirty yellow with black and shades of gray. This portfolio website is not rich in the content as the previous one, but Work section is quite descriptive. The interesting solution is the navigation placed above the screen grabs that allows jump between images. Simplicity works.

Hans Albu Sanmiguel
What we have here is very clean, simple and yet creative approach. There are few elements that attracted my attention. First - the animation of the birds - quite neat and also not disturbing flash animation. Second - the main and sub navigation breakdown. Both are aligned vertically. Content pages with nice, original imagery and fancy headings look really well. Headings also use Cufon as a font embedding technique.
For me the most interesting section is the portfolio which can be filtered using third level navigation. That section nicely combines AJAX, scroll-to functionality and images carousel (done with MooTools). Sehr gut.

jQuery madness
This is the coolest website before launch checklist I have ever seen. I has predefined fields with iPhone-like check box, you can disable field if not applicable (N/A) and add a comment. What also is nice, that some extra fields can be added if necessary. Fancy input fields use CSS3 properties like border-radius and box-shadow (this is webkit actually). Animated background is based also on CSS (webkit again). CTRL+D ;)
