Sometimes, knowing more about the medical student association can be done without even visiting the official site of the organization in question. Indeed, you could just ask people in the related online forums to provide you for whatever information or details you might need to know about that union. In some way, this way of getting information can actually be considered as more disinterested rather than you dig up in the official site.
The reason for this is that members of online communities can be taken as outsiders to the medical student association and thus they are much less predisposed to the said association. Of course, you need to be carefully selective and only taking into your own consideration those members who happen to have actual experiences or related knowledge about the said organization.
This is important if you want to maintain fair judgment toward the medical student association for making a better consideration about joining or not joining the organization. Once you think that you have got enough information for this organization, you can use those opinions, personal experiences, and related knowledge from those members to help you making up your mind whether now it is the perfect time to really join the organization.