Yeah, there's no standard 'Print Selection' contextual menu.
If you're using IE, then of course Microsoft would be the one who has not added this feature to the program. You can complain to them.
If you're using Chimera (the best OS X browser), then I have almost-as-good:
1. Select the text
2. Select the menu item Navigator: Services: Make New Sticky Note
3. A new Sticky appears with the text. Hit Print.
Services are really cool if you start getting used to them.