Hi Daniel.
I admire your tenacity. Spacey and other unusual subjects subjects don't appeal to everyone yet, you clearly have passion in these areas. You may wish to reflect on whether you aim to 'preach to the converted' of the field or whether you would like to evolve to appeal to individuals who may be less informed than the experts yet have a growing interest in your passions. There exist a group of people who are perhaps more academic and interested in the subjects you mention.
For example, the space youth advisory council (
SGAC - Home) is comprised of a group of your people the world over who are interested in space issues. Many of them are science fiction enthusiasts, trekkies, thrill-seekers and unsolved mystery enthusiasts too.
Among these space enthusiasts are SETI supporters as well as invidividuals who have diverse interests in extra-terrestrial life. These people include scientists, policy students, teachers and others. Once you decide whether your blog is best suited for multi-disciplinary, scientific or some other group, it may be easier to re-orient your focus, if that's what you choose to do.
check out
Home - SETI Institute ESA Communications Portal United Nations Office for Outer Space Affairs International Space University --International Space University (ISU)
and other agencies which have youth groups and web links
Let me know what you find out and whether or not that's of potential interest. I've been affiliated with such groups and may have other ideas to offer you at a later stage.