I've read an article today where the author stated that if you put keywords on to your page but then hide them with CSS, Google will penalize your site. This make sense.

This got me thinking though about my own technique when I build a website. If for example when I build a website and the logo contains the name of the website, I tend to put the name of the website in a H1 tag and then hide this tag. I don't know why I do it, I've always done it. I also include any text held in an image in the alt attribute of the img tag.

But because I am hiding the H1 tag, does this leave me open to Google penalizing the website because I've hidden this one tag?