Check out
http://www.short-wave.info/index.php for station schedules.
I recently picked up a new software defined radio - a Softrock, expressly with the purpose of improving my SW reception. Its a big cut above the RTLSDR dongles I have been using up until now, and its not so expensive, however, you need a good sound card in your computer, I cannot stress that enough. A noisy computer and/or noise around your home can ruin the reception and its hard to track down. Also, check that whatever software you like is fully supported. Linux is not so well supported, unfortunately.
Short term, to get some new signals tonight, if you have something you can use as a variable capacitor, I would try out a magnetic loop antenna, a loop of approximately one or one and a half meters in diameter will dramatically improve your reception over the typical long wire. You will need a variable capacitor from an old AM radio. Make a smaller pickup loop, you could use a short alligator clip to ground- on your radio, in the same plane as the main loop. Tune it very slowly and listen for the peak. Google "magnetic loop".
Another option is a cheap ($15 or less) RTL2832 dongle, and an upconverter ($30 or less, any more than that you would be better off spending the money on a softrock - sound card and mixer based SDR. They can be bought as kits and are very affordable.
You can also use a RTL2832 dongle to receive HF in direct sampling mode. Don't spend extra on a more expensive RTL dongle, you are better off getting a better HF SDR.