Sharecrazy.com was featured in the Observer earlier in the year because it bought the big city share trading to Tenby Harbour.
The director of Sharecrazy.com is Malcolm Stacey, an author and former BBC Radio Four presenter, who now lives in Crackwell Street. He runs the site, which now attracts 12 million hits per month, from his living room.
After our feature, a top share trader logged onto Sharecrazy, under the pen name of 'The Tenby Deckchair'. He or she started putting red hot share tips on the site. Many of those suggested stocks have shot up in price.
Now hundreds more armchair tycoons log onto the site to take advantage of the Deckchair's deep research into shares which are likely to show profits. Though not all of them do, Malcolm says he has a good track record.
The identity of the Deckchair is a closely guarded secret. This highly successful private trader claims on the site to be a career woman living in the centre of London. But it is thought he or she actually lives and trades at home somewhere in the Haverfordwest area.
Said Malcolm Stacey: "The Deckchair told me that he (or she) read about us and has been contributing to our site ever since. Deckers, as we affectionately call him (or her), now comes on the message board of the site many times a day.
"No money changes hands, because we are a free site. So we are very grateful for this generous support.
"Tenby Deckchair is extremely clued up on shares and one of his (or her) methods is to study graphs of how shares perform. I have followed one or two of the suggestions myself and have been surprised how well some of the stocks perform."
The Deckchair told Sharecrazy that the pen-name was chosen because he (or she) once looked after the chairs on a Tenby beach - and has fond memories of the job.
Malcolm says anyone is warmly welcomed onto Sharecrazy.com. They can chat to other share investors or even trade at cut-price rates. Modern technology means that the Tenby site is indirectly connected to the Stock Exchange, so share fans can trade without paying the normally high fees of most brokers.