This week we look at a pair of mobile video apps with a streamlined interface and we report on a micropayment system for news content that is already up and running in the Netherlands.

This week we find out why investors are bullish on online media startups, and we find out how the Philadelphia-based startup Billy Penn is producing local news coverage aimed at younger readers.

This week we look at innovative election-night ideas from NPR and USA Today, and we see how social media tools have reshaped breaking news coverage at Mashable and The Weather Channel.

This week we explore some emerging trends in understanding audience behavior.

This week we learn about a platform for engaging with audiences via text messages, and we explore how to handle corrections to social media posts.

This week we explore how documentary video and interactive technologies can be combined to tell new kinds of immersive, in-depth stories online.

This week we explore three tools that mine electronic Web data to inform news coverage.

This week we see how Al Jazeera is targeting a young mobile audience with its new smartphone app AJ+, and we learn how two journalism industry organizations are partnering to foster new engagement ideas that encourage more diversity.

This week we explore examples of how two newsrooms are using the social platforms Vine and Snapchat.

This week we learn how Vox Media combines content, technology and advertising to reach a mass audience via its seven digital brands, including The Verge, SB Nation and Vox.com.