Moar Quesies
1. What are the pros and cons of email lists versus discussion boards?
The biggest advantage to an email list (aka e-list) is its reach, you can reach a very large amount of people just by sending an email. They also allow you to pose a question (for example) to a large group of people, but then continue it privately with one or two people, since it's essentially an email. For people that host, an e-list is far less resource consumptive than a forum for both the server and the hoster's bandwidth.
Forums are usually a more closed society requiring a more stringent sign up. A forums reach isn't as great as an e-list not only because of it's limited access but also you can easily bypass the majority of posts. With e-lists all posts are delivered directly to your email.
The e-list does have major flaws however. Its administration capabilities are limited, with the only option being to remove people from the e-list and ban their email. E-lists also lack anonymity, every post is through your personal email. The only way to have anonymity on an e-list is to create a separate email account that is exclusively for e-lists. Another e-list flaw is that all emails are directly sent to your email be they legit or malicious.
Forums on the other hand have far better administration capabilities and are able to offer greater security for its members. Forums have administrators and moderators that have the option of deleting posts, banning members from certain areas of the forums and as a last resort removing a persons membership completely. All posts are logged on the host server and members login to view, which removes the danger of having an email box full of malicious emails. Forums also offer anonymity to members by allowing screen names and the ability to hide their email address.
2. Are there certain kinds of communication or purposes more suited to one than the other?
When you need to display static information an e-list just isn't practical. Forums can display static information infinitely, an example being a thread that's only purpose is to state the rules of conduct. The administrator can set this thread up so it can't be responded to but it is always visible no matter how many years the forum is active for.
When you want to reach out to a large audience for opinions or to ask a question then you really can't beat e-lists. Your one post can automatically reach every email that is signed up, whereas on a forum only people that have remembered to login and check through threads will see your post.
A good example of e-lists being used is the many open source development lists, where reaching a large audience is important for bug issues, updates to the API/Software, or problems people are having. E-lists are also good for general archiving, as emails are typically very small in size.
