You may have followed the debate about HBR’s policy prohibiting professors from linking suggested HBR readings
to their own library’s paid subscriptions (see Joshua Gans’ blog posts on this and his Financial Times article on HBR and their journal list). I have increasingly used McKinsey Quarterly which makes their articles available for free (you need to register but that’s free). Here are some HBR alternatives that seem to work well (often by authors you know well):
Strategy process & org change
- DecisionBias-McKinseyQ0311
- StrategyDiamond-HambrickFredricksonAME01
- HiddenFlawsInStrategy-RoxburghMcKinseyQ03
- RadicalChange-IsernPung-McKinseyQ07
Internal Analysis and Competitive Advantage
- InternalAnalysis-AME
- Culture-FlyingPeopleNotPlanes-Simpson-McKinseyQ11a
- Barney-CultureCompetitiveAdvantage-AMR86
They are planning to invest $500M just in marketing the new phone (more than Apple or Samsung). This may be motivated by the fact that Samsung is 

Here are some popular case repositories:
Here are 