[Alfa1]

The AJAX tabs take long to load. You can tweak this by letting it all load at once. After the first load, all tab clicks instantly show the content.

I find the blue skin quite business like, while you are targeting playful, creative interaction. The changing logo looks great. IMHO your design misses mystery. And mystery is the central aspect of that site. Maybe some smokey effect.

What audience are you trying to attract? Those that seriously believe in these phenomenon, those skeptical of it, both, or just people who like to joke around? The cartoons may attract the latter.

I really like the TU logo/favicon.

Consider to spell magic as magick. The latter being used to differentiate between magician shows and occultism.

Regardless of the validity of any topic on your site, you know that if your site becomes successful, you'll attract a fair number of nutcases do you? Its just one of those territories, where moderation can be really difficult.

Anyway, I hope Ive added something useful.