While I'm not an expert at SEO, I know a little, and I have had someone tell me two things that I believe to be false, but just cannot convince him. Here are the statements he makes:
1) If more people visit your site, you'll get better SEO rankings. The context here is sending out an email campaign and people clicking from the email campaign through to the site.
I don't think this has any factor in SEO rankings. I do think that if people search for keywords where your site comes up, and click your site more often than those above you in the rankings, that you may progress, but I'm not even 100% sure on that. Am I right though that people clicking through an email to your site won't affect your SEO rankings?
2) Alexa rank is a measure of SEO importance / rankings.
From what I know, Alexa rank is based purely off of people visiting your site who have the Alexa toolbar (or other software?) installed. This means that not only is it not counting all your visitors, but it's probably counting a specific segment, most likely more web savvy folks who have the Alexa toolbar installed. I consider myself OK at computers/web development, etc., and I've never had the Alexa toolbar installed. Anyway, is #2 a myth as well?
Is there any evidence to support these two?