Ever go to a conference and feel like you just paid hundreds of dollars to see a bunch of ads? Nobody wants that — especially when it’s your conference.

That and more in today’s Social Media Roundup:

Education, Not Promotion

Are You Attracting Your Best Attendees Or Are You Repelling Them? via @jeffhurt http://t.co/PuAHRk24 #eventprofs #eventsense #pcma

— sensov/ event mktg (@eventsense) November 27, 2012

As Velvet Chainsaw’s Dave Lutz puts it, if you’ve handed the reins of your event to conference marketers or vendors intent on self-promotion, you’re in real danger of scaring off your attendees. Lutz is blunt in his assessment of events focused more on the promotions than the attendees: “Push or interruption marketing no longer works and can really irritate your best customers,” he explains. “When you promise premium education and networking at your conference, be sure to keep the experience free from undesired promotions.” How do you balance the needs of sponsors with the needs of conference-goers? (ht @EventSense)

One Size Doesn’t Fit All

Bookmark: The Ultimate Social Media Image Size Guide http://t.co/lrpZp2v1

— Maddie Grant (@maddiegrant) November 27, 2012

The hardest part of social media might be remembering all the sizes you need for all the images you have to post on every network. While some networks make it reasonably easy to figure out—it’s pretty hard to screw up images on Google+, for example—other networks like Twitter make it a little bit of a challenge. That’s why Maddie Grant of SocialFish has reason to be excited about the infographic she just found: “The Ultimate Complete Final Social Media Sizing Cheat Sheet,” created by Luna Metrics. “OMG. This is it; what you have been waiting for,” she exclaims. Bookmarked … until the next time Facebook redesigns.

What cool things have you bookmarked lately? Let us know all about them in the comments.

(iStockPhoto/Thinkstock)