As a proofreader and copy editor, I have worked for the top technology corporations in the industry. But it's not the big names that are the best recommendation -- it's the writers. Great writers love nitpicky editors. It means they can relax into their creative task, without worrying that they will spell "their" wrong.
In addition to being a writer's editor, I specialize in global English. This means that your Web site will be easily translatable by search engines (a trick of grammar constructions) and free of ethnocentric or geographic bias (for example, sunny windows are not on always on the south side of the house).
I will work on any text, interactive or print, high-tech or low. I am available by e-mail on 48-hours notice. References and a full CV available upon request.