Twitter - how valuable is it in business?

Recently many ‘names’ in business (Robert Craven, Ken McCarthy and many many more) have declared in favour (UK Spelling) of Twitter as a business medium for ’spreading the message’ (their business).

I have been a raving fan of Twitter from the start. Heralded as a milestone in internet history and search engine optimisation, Twitter could best be described as one of the initiators of micro-blogging. Registering as a business on Twitter is easy, such as example BusinessFinder on Twitter.

Twitter can be an excellent medium for businesses, as any good marketing consultant should verify, to keep in contact with its customers, prospective customers and indeed any customer segment it chooses, and as many as it chooses since there are few restrictions to membership.

One of the key questions to me is the value in terms of search engine optimisation and the quality of internet links is a micro-blog post on Twitter. Is it only the main link that has value or is does the link in each post also have a value?