eBay (EBAY -0.2%) roundup: 1) PayPal and Discover (DFS) have signed deals with 50 merchant acquirers; this will allow PayPal to be an option at 2M+ merchant outlets by year's end vs. 250K today. The Discover partnership went live last month. 2) CEO John Donahoe insists eBay isn't opposed to an Internet sales tax (previous), but wants an out-of-state annual sales threshold of $10M (exempting most Marketplaces merchants) vs. the proposed $1M. 3) Looking to fight off upstarts such as Stripe, PayPal is making it easier to login/pay at multiple merchant sites. 4) Wal-Mart continues to resist PayPal's offline efforts, arguing "the added complexity at the point of sale does not justify acceptance of PayPal."