Just a few links this week: some oldies-but-goodies and an interesting new jQuery plug-in:

Make and receive calls in your Web browser with the jQuery Phono API: http://www.phono.com/

Yahoo! research on site optimization tools and techniques: http://developer.yahoo.com/performance/

Google APIs Console for managing and tracking API usage: Blog introduction, https://code.google.com/apis/console/

Don’t forget the offline world when building your social media campaign: http://www.openforum.com/idea-hub/topics/technology/article/5-ways-to-promote-your-social-media-efforts-offline-sarah-kessler