Mini Bridge, Kuler, and Adobe Exchange are missing from Photoshop CC 2014.
Mini Bridge and Kuler were based on an outdated technology and have been removed from Photoshop CC 2014.
Adobe Kuler is now Adobe Color CC and is available on the Apple App Store and on the web.
Adobe Exchange has been replaced with Adobe Add-ons. To access them, choose Help > Browse Add-ons from within Photoshop.