Oh my! Jpg destroys the best of the images. Which camera do you have?
I think (depending on the camera you have) it actually uses less card space to record in raw because it doesnt have to keep the raw AND the jpg. If your camera didnt come with a conversion utility or you dont have Photoshop you might be stuck. Adobe may have a free conversion program also.
Flickr might work as a place to upload... or Dropbox. Dropbox basic which is free gives 2GB of space. The problem is sharing on Dropbox which you have to decide on. Its really better for groups of people in photography classes or business groups.
Flickr limits you to 20mb per image and that means one image with a 16 or 18 MP camera. 300MB per month also limits you to 15 images of that size.
Windows Live Photo Gallery (Free) gives you 25GB and is quickly becoming the most popular.
Complete list (more or less):
http://en.wikipedia.org/wiki/List_of_photo_sharing_websites