Again, because of the paucity of new words in the OED after the second edition of 1989, I’ve turned to the “Among The New Words” column in American Speech to for supplementation. ATNW is a great resource, but because it is put out rather hurriedly, and especially for the columns before 2000 when internet searches of literature started to become widely available, it can often be antedated. In many cases the a subsequent update to the OED will antedate a term that is recorded in ATNW.
Another advantage of ATNW is that it captures new senses of old words. Often these are in the OED, but new senses, as opposed to new entries, are harder to find via search.
And the reason I have so many antedates is that I’m doing this serially. A word may be antedated to 1985, but I’m not aware of it until I get to the year that ATNW records it. By then it’s too late to include for the original year. I’ll fix this when I put it out in book form.