There is quite a few forums available for adult fans of LEGO, including Classic Castle and Brickish. There are also a number of local websites including ones for Texas, New England and London.
The BIONICLE desktop toys were taken off the LEGO website years ago, however, fans have saved them and re-uploaded them. They can be downloaded here: http://www.bzpower.com/forum/index.php?showtopic=308373&st=0&start=0 You can also find them here. Scroll to the right and keep your eyes open. You will see it eventually. http://biomediaproject.com/bmp/games/
A person may find Lego pirate toys on sale online at Toy "R" Us and Toy Wiz. Both offer a nice selection of individual pieces or complete sets for pirate fans.
You can find them with a Lego kit sometimes
You can find sport forum on sport's sites.
join a club first... then ask someone in the club when the meetings are... you can find the nearest club by going to your nearest Lego store and asking them about local clubs or calling them on the phone... if you now longer a kid.. then you are considered an AFOL (ADULT FAN OF LEGO).. Google it..
One can find information on Lego building from Lego's website. One can also find information on lego building from various Lego forums on the internet, as well as Wikipedia.
One can find sports information about the Los Angeles Lakers on the LakersGround website. The LakersGround website has videos, sports statistics and a discussion forum for sports fans.
It's gotta be over 700 with how many Lego fans are in the world, but I'm not sure, you do the math!
At Lego city
One can find the Michigan Sportsman forum on the Michigan Sportsman forum website. There is a specific section called the forum where one would find what they're looking for.
In the lego website and stores.
The British Speedway Forums are located on the Speedway-Forum website. On this forum, fans of speedway racing can discuss the racing itself, view news stories, read about the history of speedway racing, and browse available merchandise.