I tried all of the links you gave me, including going through Google in the nether regions past page 10. The only source that I found that had could come across as reliable - slightly - is the exopoliticsgb.com. I say this because many of the things the author writes about are also topics that are routinely talked about on SOTT, Alternet and Prison Planet. The author also focuses a lot of time on the Comet Elenin, which has also been discussed here. Another site, _www.viewzone.com, talks about Charles Hall and the Tall Whites (they provide more pictures than exopolitics).
The website I gave above actually goes into a little more detail with the continuous experiences of Charles Hall with the Tall Whites, but it also gives other people's accounts of them in other areas. It seems to me that the description of the Tall Whites, and their ability to blend in with people, closely aligns with the description of the Nordics and the Atlanteans given by the Cassiopaeans. Tall, blond, blue eyed, and there you go. Interestingly, they state that the Tall Whites are from the Arcturus star region, in with the Orion Federation; as well as discussing the purpose of the Grays and Reptilians. They too say that the grays are tampering with the genetics of the human species, but also with all other alien races. Another interesting aspect is saying that there might be a correlation with Tall Grays and Tall Whites, though they didn't go into a lot of detail as to what the difference between these two were, aside from the color.
I feel kind of dubious about some of the things Charles Hall goes into detail about. How the TW can kill with some microwave pen-like object, but will only do so if they feel their children are at harm (apparently, from what he says, if you look at their children wrong, you could get popped). Which brings back another thing he was describing: the Tall Whites use the Area 51, and Earth, as a kind of lay-over stop between one area to the next. In a particular ridge of mountains near Area 51, they actually have housing built for all members of TW. Males are stand-offish, females are more willing to talk; and they like to go to Vegas and gamble.
It feels like he could be talking about Nordics or Atlanteans, as described by Cassiopaeans, but I also have to question his ability to produce multiple books about it. What really makes me question it is his claim that all that he has written was true, except that he could only publish them as fiction to protect the names of people and places. Many things have been written in Science Fiction that could be claimed as true, such as a Scientology.
I welcome any opinions or ideas on this, thanks!