Make a site with a clear hierarchy and text links. Every page should be reachable from at least one static text link. 

Offer a site map to your users with links that point to the important parts of your site. If the site map is larger than 100 or so links, you may want to break the site map into separate pages.

Create a useful, information-rich site and write pages that clearly and accurately describe your content.

Think about the words users would type to find your pages, and make sure that your site actually includes those words within it.

Try to use text instead of images to display important names, content, or links. The Google crawler doesn't recognize text contained in images.
 
Make sure that your TITLE and ALT tags are descriptive and accurate.

Check for broken links and correct HTML.
 
If you decide to use dynamic pages (i.e., the URL contains a '?' character), be aware that not every search engine spider crawls dynamic pages as well as static pages. It helps to keep the parameters short and the number of them small.
 
Keep the links on a given page to a reasonable number (fewer than 100).
 

翻译过来就是：

使网站有清晰的结构和文本链接，每一个页面至少要有一个静态文本链接入口。

为用户提供一个站点地图：转向网站的重要部分。如果站点地图页面超过100个链接，则需要将页面分成多个页面。
 
创建有用的，信息量丰富的站点，清晰并正确的描述你的信息。 

想像用户可能用来找到你的关键词，并保证这些关键词在网站中出现。

尽可能使用文本，而不是图片显示重要的名称，内容和链接。GOOGLE的机器人不能识别图片中的文字。 

保证页面的TITLE和ALT标记正确的精确描述 

检查死链接并修正这些HTML错误。

如果你打算使用动态页面，链接中包含"?"，必须了解：并非所有的搜索引擎的机器人能象对待静态页面一样对待动态页面，保持动态页面的参数尽可能的少会很有帮助。 

保持一个页面中的链接数少于100个。

更多关于网页设计的思考：

1、网页设计的基础--网页布局

2、网页设计的原则

3、疏可走马，密不容针

4、网页配色方案的选择和色彩使用技巧

5、网站风格的确立

6、不"哈韩"也看看韩国网站的设计构思

7、Google官方的网页设计建议