Ok, further - On the Widmore site, if you view the source, under the meta tags there is a list of keywords that will call the site, one is "Truffulatribe" . So, go to http://www.truffulatribe.com/ . There is a reference to a Mr. Brisee, and links to other sites... And the numbers 4 8 15 *bork* 23 42 are featured... still exploring.
I think all these sites are anagrams, truffulatribe is probably a scrambled clue, and as we follow these sites, they probably give us something good... We need to work on putting them in order.