Marketing tool to remind people of upcoming events?

I am the computer training at our company. There are about 500 people in the building that have the opportunity for computer training. Currently, I send out a newsletter with tips and security information, which also includes the training calendar for the next two months. I normally have more people sign up for training when this is sent out; however, I do not want to send out more emails because I am afraid of spamming people basically with unwanted emails.



I have my training calendar posted on our intranet but because of the setup of this intranet it is rather difficult for people to find. You also cannot bookmark it because every time it is updated it gets a new url (I know, out of my control).



Also, HR sends out a monthly email with a link to the training calendar as well.



What can I do in between these items to get people to sign up. I've tried making posters, but I haven't had much luck with that. I've had a give away for an all-in-one printer, which went well, but I cannot do that every month.



I've thought about taking food or candy to each department with a note next to it, but wasn't sure about that.



Any ideas to draw more attention to a training schedule periodically and what I can do to get more people to attend?



Thanks!

Couple different ideas about this one..

What about creating a specialized company blog and promote it in all your current marketing materials (newsletter, etc.) that would cater to this training.

That way each month, you can make posts that are relevant to the training, any give outs you may be raffling, and ask for employee input. The employees can sign up to the blog (like a regular WordPress blog) and comment about how they felt about that training, and can submit ideas/suggestions to improve future training.

A blog will also give you the opportunity to expand upon tips from the training that the employees can always refer to if they forget them in the future, making it a beneficial experience for everyone.

I think with some blogs, subscribers can receive email updates of a new post on the blog, so you wouldn't have to directly email them, but those who are willingly subscribing to the blog can receive updated information. Making the blogs fun and interesting may get more people to sign up.

In fact you could make this an overall HR blog, with updated company news, training information, etc. etc...

I think one of the best ways to draw attention to an event is to do something unpredictable, candy is always good but will everyone notice? It also depends on the time/money you're willing to put into for just training..

What about setting up a cpu monitor that replays a preview video of the training all day long (with other company news/events), and its benefits in an employee lounge/eating area.. Videos are relatively easy to make, simple camcorders, with windows movie maker makes a decent video...

Can you get whomever makes up payroll to insert a flyer with their checks?