Additionally, users can rate the content, provide feedback, and communicate with each other about how they are using the tools.

WHITEHOUSE: Digital Literacy Initiative Aims to Help Americans Build Online Skills | The White House

Get your funders involved with behind the scenes information, exclusive content, and design feedback.

FORBES: Crowdfunding for Makers and Artisans with IndieGoGo

In this context, a network effect is a positive feedback loop whereby platforms with stronger ecosystem of developers, content and service providers attract more customers.

FORBES: Who Wins, iOS or Android? Both, But Pity Everyone Else.

Below in the comments, CNN photojournalists Matt Rond and John Nowak will offer feedback on several iReporters' photography submissions, and CNN.com Digital Content Producer and Editor Nick Scott will share his thoughts on some standout video submissions.

CNN: iReport roundtable: Boot camp, Week 4