Get in the habit of buying at least one new reloading book a year, or at least maybe one every other year.
Vary them between those done by Powder companies, Bullet manufacturers, and other suppliers like Lyman. Hodgdon's has gone away from Hard-bound books to a magazine style. It's very good info at a cheap price, though I have to admit I've always enjoyed reading the sections about the different cartridges and how they were developed.
Also there's lots of on-line sites both by powder and bullet manufactures and privte parties.
Oh yes, you can ask for favorite loads from fellow PM members but be careful, not everyone can test the loads as accurately as the big companies, and sometimes typos happen.