Mashable, the social network blog, is doing a little bit of networking of its own this summer with a party tour around the country. And, because Seattle is the hotbed of innovative tech right now, they’re kicking things off right here, in our very own backyard. This Saturday night, the company is hosting a big event at the Showbox SoDo with food, drinks, music, all the usuals! They’ve been promoting this pretty heavily on the startup scene around here, so you can expect a good showing by some of the local luminaries. Festivities kick of at 7pm – buy your tickets now, before they sell out.