My start in J-Pop was SPEED and BoA. Next came Morning Musume and Aya Matsuura, and eventually Berrzy Kobo, C-ute, S/Mileage, Erina Mano. At the same time Japanese Film and Television Dramas. And then Japanese CM's. And then Japanese music groups that supplied music for Japanese CM's. And then AKB48. And then Passpo,Idoling!!!, and more. And am learning about rap, heavy metal, K-pop, etc.
Where? All kinds of sources, but since joining this forum, it's like having a library built in your town for the first time ever (and a corner bar full of interesting and lively regulars). Still interested in Morning Musume, from the original Fab Five, to the present group with the wonderful addition of 9th and 10th generation members.
I can learn the latest news about any of the members from Aya Ishiguro to Ayumi Ishida, or if I find something interesting about them I can post it here.
And on days when there is relatively little new happening with Hello Project, something else is going on in the other threads.
Nothing wrong with starting other forums, the more the merrier, but perhaps mentioning or crediting this forum on other forums would be reciprocal.