A very simple but effective use of ICT in your school or subject area.  Why not have an online notices page?  This can be updated with news, advice, events, whatever it is that your students need to know.

Most VLEs have this feature built into them if you are not already making use of it.  If this is not the case you could set up an online blog, google document or web page to deliver notices.  There is advice throughout this website on how to set up each of these things.