There are tributes to Julie all over the Internet but I thought I'd direct your attention to the ones from from Neil Gaiman and Mike Netzer.
And here's a link to the AP wire service obit, which contains a lot of info from this site. An important and probably beautiful obit by Harlan Ellison will be appearing shortly.
Lastly, a correction: I said Julie, back in his agenting days, sold some of H.P. Lovecraft's first stories. Wrong. As Bob Beerbohm reminds me, Julie actually sold some of Lovecraft's last stories, including those that appeared in Astounding Science Fiction in 1936. As the tale is recounted, Julie (then a young, go-getter agent) approached Lovecraft, who was living in near-poverty. Lovecraft agreed to let Julie rep his work, whereupon Julie got him the highest fee he'd ever received…which, amazingly, displeased Mr. Lovecraft. He apparently felt it was unseemly for a writer to fight for money, which might explain why he so rarely had any. In any case, the author responded by firing his new agent and dying not long after…so Julie knew Lovecraft at the end, not at the beginning. My apologies for the error and my thanks to Bob and also to Juli Thompson, who wrote in about it.