AdWords refocuses attention on budgets
If you're managing your own AdWords campaigns, do you know what your impression share is?
Wordstream
Pay-per-click advertising on Quora
It may be worth investigating if you've maxed out on what you can get from AdWords
Hands up who’s got a company Facebook page?
The visitor numbers and the Google rankings speak for themselves.
More detail on the effects of Google’s ad changes
Natural (free) search results haven't been hit hard
How a web marketing assistant could transform your site
The best thing which courses provide is an up-to-date list of actions, and there are many such lists available online for free
Have you got time for online advertising?
The increasing amount to learn just to keep up with the best of your competitors is fine for those companies who are increasingly concentrating on online marketing.