If a person visits your website and leaves, chances are that he or she will not come back, especially if there are no compelling reasons to do so. After all, we all behave rather impulsively on the Internet, so much so that we can easily forget where we were 10 web pages ago. But the bottom line is that your visitor may not come back to your website again. If a 1,000 visitors visit your website, leave and never come back again, you can imagine the amount of potential money lost, simply because they do not come back. You could have converted a fraction of those visitors into your customers. Before your visitor leaves your website, you want to convert him or her into your subscriber via a simple opt-in to your mailing list. You do this by asking for your visitor’s name and email address through your opt-in form. And if your visitor signs up to be on your mailing list, you can still follow up with him via email. You can get your subscriber to consider your offer, or endorse another offer to him or her. You guys have a great week. Thanks.
That's it. Offering something, some kind of report, PDF stuff. I recommend usign Aweber in order to do that. I've wrote about it on my blog the past week. People won't subscribe just because you ask them to do so.
I use Total Business Cart. It is similar to Aweber, but also has a shopping cart option, (at a cost), if you want it. Offer something free to download, (ebook / MP3) and capture their details, but it's good to then have an upsell product, which they may just buy, while waiting for the free download.
Give away something of value for free. Free information is ok, but there is free information everywhere, so why should they sing up for yours? The trick is to know what your customers are looking for. Then base your email bait around that.