What if every week, or every other week , or every month...it will be up to you! You blasted an email to all your colleagues and and talked about common interests. Let the conversation flow freely and see where that takes you.
Why do I say that? Everytime I talk to people and hear what they are doing and we discover something new that inspires me to learn more. Exchanging with like minded people, with people with same interests that just makes me so so excited and engaged! Conversations are inspirational!