Always nice to see someone interested in pursueing a business idea... however i'd be very cautious with this field...
> There are many very extablished players (1800, expedia, hostels.com, hostelworld etc.) who have huge resources and connections with hotel owners.
> The pricing model is typically a markup on room rate and a small booking fee... the big part here is the size of the markup... to be able to get a big markup websites typically buy large numbers of rooms well in advance and therefore get a discount... this model itself has some major risks:
1) a huge outlay of capital to book rooms in advance with no customers
2) the risk of not selling on rooms
3) the risk of future events making rooms less attractive (e.g. say you'd made a booking for 10,000 rooms in the states in july 2001 for use in september 2001...)
> Margins are inevitably tight, as there are not only lots of hotel res. sites, but the hotels themselves.
> You might find that some of the existing sites make more money off non-core activities such as ad sales and car rentals.
> the only part of the market not already developed is the small scale guesthouses/b&b end... which might be vvery expensive to set up integrated booking systems for...
I don't mean to knock your idea, im sure you knew a lot of the above... just no harm to think things through fully.
Best of luck