Google and articles - promoting several sites in one byline?

[fairguy]

I have 3 websites that I usually promote at the same time by writing articles. So let's say I write article and I include all 3 websites in my author line. Is it better to write one article with one website in author area, or I can include all 3 websites in my author area. If I have all 3 websites included, would that distribute ranking evenly among sites? How Google would see this?

[le_gber]

Are the 3 sites geared toward the same audience? Selling the same products? Hosted on different IPs? Different enough to not trigger dup content penalty?

Why not use 3 press releases (one for each site) and see which one converts the better? You could test the writing style, link direct in copy, etc...