In this forum, you can tag people in threads and posts. This will be very handy if you want them to see or be alerted in a thread or post of yours or someone elses. Nice way to alert someone about a good post. So its really simple, if I wanted Red Fly, ggp and porfessori to see this thread i would do this, @Red Fly @ggp @professori and when I post the thread they will be alerted. Nice feature!