Blended Strategy is the Key to effective job search

If you did not know this earlier, another study on effective job search techniques concludes that for effective job search one has to use a blended approach. 
Data suggest the importance of making a direct application (e.g., applying online) which appears to be the preferred approach by many employers today, while simultaneously networking into the target organization. A referral from within the organization is the most successful strategy for landing the opportunity. 
So use all the ammunition at your disposal. Apply via the job boards, company own employment websites, but try to get an inside link to the company at the same time.