8 Reasons you should consider registering multiple domains

One for each product or service you offer.
One for each way people commonly misspell your domain name.
One for email marketing (so your outgoing mail is never blocked by spam services).
One for each target market, so you can sell directly to their keywords/preferences.
One for your blog so you can create traffic/links to your website another way.
Many that contain keyword strategy variations for strengthening/building traffic to your existing website.
Many for different advertising strategies you want to test and measure.
Any that protect your online identity from your competition, and others that could tarnish your brand.

Please share your reasons for registering multiply domains below…