Sled Island Schedule is out (and festival guide is in current issue of Beat Route):
https://www.sledisland.com/schedule/2017-06-20
250+ bands - here are troutman's picks (I gravitate towards guitar bands, shoegaze, post punk, power pop, alt rock etc. I do enjoy electronic and hip-hop, but don't know it as well. Check Flying Lotus's picks for that):
Tuesday, June 20:
Poster Show - Phil & Sebastian
Kick-off - Commonwealth - Melted Mirror, Kiso Island, Wares, Crims & Flow, Soft Cure
Wednesday June 21st:
Local 510 - Husk, Marlaena Moore, The Garrys, Wint, Heart Beach
Palomino - Ex-Boyfriends, Cham, Expanda Fuzz, Blu Shorts, The Avulsions, Bog Bodies, Simply Saucer
Nite Owl - Brunch Club, Milk, Walrus
#1 Legion - Surf Dads, Crystal Eyes, Frigs, Wares, Cloud Nothings