Yes! To email another member, you can search for the member
in the Members List,
or click the
button in any of the member's posts.
This will usually bring you to a page with a form where you can enter
your message. Once you are done writing your message, press the "Send"
button and your email will be sent. For privacy reasons, the recipient's
email address will not be displayed.
If you can't find the "email" link or button in the member's post or in
the Members List, then the member has selected that he doesn't want to
receive emails from other members.
Another useful function is the possibility to send a link to a thread to
somebody. When viewing a thread, you will see a link called "Recommend
to Friend", it will bring you to a page where you can send a short message
to whomever you want.