may i know who is ur boss??? familiar with my ex senior... haha
he also starter something like tis...end up onli  he sharing knowledge as we all  junior nth to contribute...haha

is good to share, just hide some important part lo...
tell overview thing.. if wan more detail go learn urself. haha

can i know is that ur company is japanese company?

You improve yourself by keep on learning and acquiring new skills/knowledge. Don't be scared to share.

BTW, if your skill is something unique, other people will not be able to learn/master it easily, right? If you take years to learn something, do u think your boss can learn it by just a 30 mins lecture by you?

Actually, this kind of practice is always good for the company and the boss/manager, but whether it is good for the employee is kinda depends on the individual.  If there is knowledge sharing, then the company will benefit as it means its employees will be able to contribute better, on top of that once the knowledge level is saturated, i.e. leveled out where most the employees are at the same level, then this will drive competition and again the company will benefit.

On the other hand, from an employees point of view, each person has their own skill and knowledge that gives them the competitive edge.  Like you said, teaching others this is practically limiting your own rice bowl.

Carefree,

1) If you think you live on what you know at this moment forever, you must be very naive.  If you can learn it in 6 months, someone else can definitely learn it in 6 months too.  So, you need to keep on running and learn more stuff.

2) Why do you think you cannot learn from others too??

3) By the way, you learn and know more when you teach someone.  If and only  if you can teach someone, that is when you really know something.  Only when you teach someone, you know whether you have a gap in your knowledge.

4) I had worked in IT/Datacom/telcom world for 20 years and I still need to learn and keep up with the world.  What makes you think that your 6 months of learning can last you a while??

5) In this new world, the most important thing is not what you know.  Anyone can Google and know a lot of stuff.  The most important thing is how fast that you can learn anything..

Dreamer

P.S.: My company used to have what we called brown bag lunch.  That means at lunch time, people bring their own lunch to listen to lectures/training from their co-workers.  The attendance and presentation are purely voluntary.  You could choose to present or attend as you wish.  It is lunch hour which is not part of working hour.  The presentation material are stored on the server for anyone to learn at any time.  This is American company at USA.

By the way, the free seminar / presentation are highly common and open to public for almost all universities at USA.  And, some of them are probably webcast over the internet.  A lot of MIT lectures videos are stored and available over the Internet too.

So, do you really think what you know is really worth that much??