You are now following and connecting with those who are important in your industry. You have tweeted and tagged them. You have also retweeted their tweets. Your name is no longer strange to them. To an extent they know you. Good.
But you now need to take the connection to the next level. Send direct private messages to your mentors. This may be a little difficult, but it is a necessary step to take if you are in need of a job. Send them direct messages and inform them you are in need of new opportunities.
You never know what information they may have at their disposal at that moment or they could help you with.