I had an idea of registering the domains of the big businesses and websites, then sell them on with a mark-up. But most of them seem to have been pre-ordered

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UK’s biggest domain name registrar launches .so domain names
The UK’s largest domain name registrar, 123-reg, has begun accepting pre-orders for .so domain names. Placing a pre-order for these new domain names helps buyers beat the rush to register when they are released at midnight on 1 April 2011.
Pre-orders for .so domain names can be placed online at http://www.123-reg.co.uk/so. The £19.99 price covers both the pre-order and the first year of the domain name’s registration. Customers also have the opportunity to register a .so domain for up to 10 years.
What’s more, any unsuccessful pre-orders will be refunded in full. 123-reg won’t deduct an admin fee or make any other charges.
How do .so pre-orders work?
It’s quick and easy to pre-order .so domains from 123-reg:
* Just visit http://www.123-reg.co.uk/so and search for a domain name. Pre-ordering takes minutes.
* To maximise the chance of securing each domain for a customer, 123-reg accepts only one pre-order for each domain name.
* The moment .so domain names are released on 1 April, 123-reg’s automated system will attempt to register all pre-ordered domains.
What is a .so domain?
.so is the domain name extension for Somalia. However, as there are no particular restrictions on who can register .so domain names, they are expected to become popular for a range of uses.
Because .so domain names are so new, there’s a wide choice of short, snappy, options available – unlike more established domain name extensions like .com.
They’re also great for social websites, or making domain names that spell out words ending in .so. To find out more and pre-order .so domain names, visit http://www.123-reg.co.uk/so today.
The launch of .so domain names follows news that 123-reg is the first in the UK to offer WHOIS privacy for .co domains. This identity-protection service hides domain registration information, helping reduce spam and protecting customers’ personal information.