Listen to the radio together. You can find a central list of radio stations that broadcast on the internet using windows media player

Send each other online cards, coupons, kisses & gifts. Send a handwritten note or picture.

Send text messages. If you are away from computer than keep exchanging text messages

Make a website *together*. Make a website about your couple and take his help and ideas in the making, also Create an online dedication section *for* your loved one.

Make a photo album online. You can set up a account at Picasa or Flicker and add all your pics to it  where you can leave each other surprise love notes and comments on pictures

Draw pictures online for each other.  you can launch a feature called 'Whiteboard' on MSN messenger. This allows you to draw together on a blank canvas.

Join a Online Countdown to watch the days until your next meeting count down. You can find  various countdown timers from the web.

Send a virtual flower that really grows. This online gift is a great addition to a dedication site. You get to choose your own flower pot, there are several valentines ones.

Write an online diary (blog). write entries back and forth to each other. A good service is Blogger. You don't need to know html, but you can customize your template if you do. You can set up a team diary for you and your loved one.

If your loved one doesn't have online access then you could still keep a personal diary for your special one to read in the future, so they don't miss out on your life and feelings when they're away. Or you could mail a copy to them in installments.

Keep a Photolog. A photolog is like an online journal / blog, but instead of writing entries, you post photos. It's really easy if you have a digital camera. You could take one photo every day and your loved one will get a great insight into your life. You can create a photolog at Fotopages.

Fun Photo Contests. If both of you have cameras, you could take it in turns to set each other weekly or monthly tasks. Think of something obscure or abstract and both take a photo that fits the theme. The compare results.