Do NOT "blast" your email to millions of people! It's spam, it's illegal, and it will cost you your entire business!

Email marketing can be an effective strategy, if you find ways to reach people who have actually opted to receive emails. However, if someone sells you a list of email addresses, or promises to "blast" your message via email, then this will absolutely be viewed as "spamming" and your web site WILL be shut down by your ISP within a few hours.

The best "email marketing" strategy is actually to either participate actively (and helpfully, with relevant advice) in email "discussion groups" or by buying ads to "sponsor" such discussion group mailings.

There are many, many, many other marketing strategies that don't involve search engines. For example:
– link requests to sites with related content;
– creating links to sites with related content;
– participating in online discussion forums, with helpful & relevant content, and respecting the rules of each forum;
– free "classified" sites (I've never found them effective, but some folks claim to), if you respect the rules of each site;
– blogging
– commenting on other blogs with relevant, genuine comments and a discreet reference to your web site (again, respecting the rules of each blog);
– buying advertising on web sites directly;
– buying advertising through ad networks such as Google AdWords Content Network, Yahoo Publisher Network, ValueClick, and many others;
– offering an affiliate program that pays for specific results (if your only goal is "traffic," this won't work, but if your goal is to sell products or services, it might).

Without knowing your specific goals for the web site (sales? impact public opinion? solicit donations?), nobody can really offer you meaningful advice. Try re-posting with a more focused description of your goals.