Module development and code questions

I'm not sure if this is the right forum for this and I have searched high and low to no avail for an answer.

Is there a webmail module available for drupal?

I slapped together a couple of new drupal modules this last weekend - a linkdump and a shoutbox. Check them out at http://www.bitesizeinc.net/node/view/23719

Is there a way to display a list of nodes that all have a common taxonomy ancestor?

For instance, in the "Food" example hierarchy in the drupal help, there is the term "Alcohol", with two children, "Beer" and "Wine". However, if the user clicks on the Alcohol term, then he won't see any nodes with just the Beer or Wine terms.

As far as I can make out, the "taxonomy/page/or/n" page doesn't take the inheritance of terms into account.

While i'm busy trying to sort some things out for making a new imageapi, i think it would be nice if people tell me what they expect from such an api. What should it do, and not even less important, what shouldn't?

Currently I'm having the following point:

Does anyone know how to make the title of a node link to that node, for example on drupal.org "Drupal 4.4.0 release candidate" the title is a link to the node. I had help from another user with this issue, but I couldn't get it to work properly.

When a blogs title was clicked, it would link to /weblink/goto/### when it should link to /node/view/###. This would bring up a 404 error. But if a weblinks title was clicked it worked fine.

I'm trying to come up with the best way to add website subscription for a project I'm working on. I'm thinking it might be possible by adding my code through the user hook. I was looking at the $type variable and it seem that I need a new type for inserting myself into the new user process.

Anyone have any thoughts on this? Is this where I should look and can I use the existing types?

Joe Cotellese
www.clearstatic.org