Google Apps

http://www.youtube.com/user/GoogleApps?feature=watch

localytics

http://www.localytics.com/blog/

Nokia

http://store.ovi.com/

Samsung

http://www.samsungapps.com

50 Great Apps for iPhone, Android and BlackBerry

http://www.aarp.org/technology/innovations/info-03-2012/50-free-smartphone-apps.html?intcmp=outbrain&obref=obinsite

how to build a mobile application

http://www.youtube.com/results?hl=en&q=how+to+build+a+mobile+application

https://ibuildapp.com/

Mobile application development / 8 Steps

http://en.wikipedia.org/wiki/Mobile_application_development
http://www.slideshare.net/ctlaws/8-steps-to-creating-a-mobile-app-by-partyaficionado

17 Solutions to Build Your Own Mobile App

http://www.practicalecommerce.com/articles/2573-17-Solutions-to-Build-Your-Own-Mobile-App

50 best smartphone apps for Student / Teacher

http://www.onlinecolleges.net/2012/08/21/the-50-best-smartphone-apps-for-back-to-school-the-student-edition/
http://www.onlinecolleges.net/2012/08/20/the-50-best-smartphone-apps-for-back-to-school-the-teacher-edition/

All-Time Top 10 Free iPhone Apps

http://www.businessinsider.com/all-time-top-10-free-iphone-apps-2011-1#10-paper-toss-a-casual-game-1

Scout

http://appscout.pcmag.com/

Read Write

http://www.readwriteweb.com/mobile/tag/Apps

Inventor

http://en.wikipedia.org/wiki/Google_App_Inventor

Microsoft

http://social.msdn.microsoft.com/Search/en-US?query=app&ac=8

Click To

http://www.clicktoapp.com/

Storm

http://appstorm.net/

Android

http://www.androidapps.com/

Camangi market

http://www.camangimarket.com/set_event/set_en_index.html

Huffing Post

http://search.huffingtonpost.com/search?q=app

Club

http://theappsclub.com/

Top Apps – The 100 Top iPhone and Android Apps

http://topapps.eu/

Largest Community for Smartphone Hacks and Development of Apps.

http://www.xda-developers.com/

148

http://www.148apps.com/

Store

http://www.appstoreapps.com/

Best Game Apps

http://www.thebestgameapps.com/

iPad

http://ipadappsplus.com/

Book

http://www2.fz-juelich.de/vislab/software/idl_docs/building.pdf

Popsci

http://www.popsci.com/search-results

Data

http://www.appdata.com/

News, Videos, Reviews and Gossip

http://gizmodo.com/apps/

World

http://appworld.blackberry.com
http://www.appsworldmag.com/

Advertising Moves to Apps on iPhones and Android

http://www.forbes.com/sites/timworstall/2012/04/22/advertising-moves-to-apps-on-iphones-and-android/

Portable

http://portableapps.com/

Rumors

http://www.appsrumors.com/

Application software

http://en.wikipedia.org/wiki/Application_software