We are also investigating the events which have led to the current situation regarding the advertising of and bookings taken for parties at Cardiff Castle.
The global economic slowdown has led to a torrid time for the advertising industry, with under-pressure companies slashing marketing budgets in an attempt to cut costs.
Understanding mobile ad engagement is still developing, which has led to less than successful attempts to apply PC Web banner advertising principles to this nascent medium.
Unlike some other forms of local advertising, the system would allow Google to prove whether ads targeted at certain groups of people led directly to in-store sales, these people said.