Absolutely! Please ensure you pick a Sense to match the topic of the link you have and then add it as usual.

If you could spare the time, it would be wonderful if you could contact the owner of the website in question to ask him/her to reciprocate with a link back to the Sense site. This will help to let everyone know where to find the resources. Please send me a copy of the e-mail if you do this, so that I can keep a check on who is linking to us, and also to thank you!