You can start giving tech talks in your own company. In my company we have Tech Talk & Pizza the first Tuesday of every month, and works really well. The people

You can start giving tech talks in your own company. In my company we have Tech Talk & Pizza the first Tuesday of every month, and works really well. The people interested in give a talk have to add the topic in a poll, and the most voted topic is selected for the next month. It's a good idea to have some fun with your colleagues, spread knowledge, and eat free pizza!