There’s a great, short write-up about Doujin shmups over on The Independent Gaming Source that’s worth a look if you grew up in the 80′s on a diet of quarter munching arcade games and are curious about how one of the genres that started in that era has evolved over the years. Since I can’t point to a resource about shmups without also pointing at a fun shmup to try, take a look at Warning Forever, windows only, free, and great fun.