I was made redundant in April and now have a great job which started in October – was it advertised? – No!
50% of all job vacancies out there aren't advertised. Don't ignore anything that comes your way but don't think that it will just land in your lap either. My advice to anyone, having been there, is contact the places where you'd like to work but do some research first. Companies only take on people to fix a problem they have so try and identify what problems which the companies you'd most like to work for might have – then – tailor your CV and letter of introduction to address those issues.
If you're on LinkedIn.com then use the contacts and also copy and paste any recommendations you get and send them in with your CV too.
Above all, try and stay positive.
The job I have now was not in response to the 250 odd applications I sent off, it came from networking.
All the very best and I hope this helps.