But now I'm over here all, "What OTHER data could I aggregate for my reading list??", and while for many years I have contemplated recording the physical location(s) in which I read each book, I have lit upon one that I like even better: where or how I first became aware of each book.
For more accurate analysis, I'll be excluding rereads from this notation, but I just think it's so fascinating. I have way more categories than I thought I would! Still deciding which ones I'm going to combine, but so far sources include:
-Library (shelf browsing or staff picks)
-Goodreads (algorithm suggestions / promoted books)
-Friends & Family Recs (incl. online friends)
-More From This Author (books in a series, sequels, or where I otherwise specifically looked up the author to see what else they had)
-Google search (when I go hunting blind for specific scenarios or character tropes)
-Estate sale (debating whether to combine, because it might be fun to compare which cheap hunting ground is better)
-Thrift or antique store (I actually don't spot many in the latter, but again, it might be fun to compare)
-Store - other (Dollar Tree and Target, so far)
-Pop culture (TV, magazines, blogs -- this category is rare enough to combine)
EDIT: I just spent a merry 10 minutes carefully sorting 2016 (second attempt), and it looks like "library" is still the leading category, with 37/101 books, despite Goodreads' increasingly heavy influence in my life. Come behind the cut for a more detailed breakdown!
In order of popularity: exact numbers, which are basically also percentages.
More From This Author: 27 (11 of those are Tess Gerritsen's doing, though)
Used book sale: 12
Estate sale: 4
Thrift store: 3
Bookstore, used: 2
One Hit Wonder locations: Garage sale, Target, TV, magazine, blog