I'm currently writing a book and this requires lots of research. As of now, I've bookmarked around 150-200~ websites that are perfect for my industry/niche and researching needs. I'd love the ability to search for various keywords but only find results from these sites. It seems Google CSE is limited results-wise and when I tried I wasn't having much luck regardless. Is there any other solutions out there that I could potentially use or even bootstrap together? I was even thinking I could go as far as mass scraping these websites into a local copy and creating some sort of internal search engine but that seems quite intense although it could be far more affordable because I feel like any crawling services are costly.