This week’s roundup of interesting SEM trends and industry news includes an infographic on the top 12 social platforms, Instagram’s new business tools and five ways to increase YouTube engagement. See What We’re Reading below!

True performance baselines & ROI for SEO without attribution modeling. How do you determine your SEO program’s real performance, discounting the effects of seasonality, paid search spending or any other external factors? Click the image above to read the full article on Search Engine Land.

5 Tips for Increasing YouTube Engagement (Infographic). An infographic from Subrat Kar, SEO and co-founder of Vidooly, offers five tips for increasing engagement. Click the image above to read the full article on Adweek.

AdWords’ new extra headline: 7 ways to make the most of it. Columnist and Googler Matt Lawson explains why the change was made and what you should do about it. Click the image above to read the full article on Search Engine Land.