Deprecated - Social software and communities

Im fairly new to drupal but have been able to find my way around for the most part.

I am having some trouble. I need to create a rss feed that will display the latest 3 blog posts from the drupal site im working on, soo I can then have another website read it.

Thanks in advanced,

-Todd

I would like the users of my site to be able to list the places they've traveled to and the places they'd like to travel. Each location will contain, city, state, country and some notes abouts their trip.

Some users will have 0-1 places traveled, some might have 20. Does anyone have ideas on how I should best implement this?

I am relative newbie using Drupal 5.1 and experimenting with various OG modules to put together a site that will serve as an information portal for students in a few courses I will be teaching next term. Basically I am creating an organic group for each course. Students registered in one or more courses will log into my site and find specific information related to their course(s)--course outline, assignments, due dates, readings, etc.

I have a pretty good sense of how to accomplish all of the above using OG and other modules. But one thing still eludes me:

I am developing an application on drupal and developing custom modules using form api. I have my own theme implemented which gives a specific look to my application. My roadblock is, I want to implement drupal comments functionality to every saved record listing. I wish to call the comments form using ajax i.e. I wish to implement this without refreshing the page. Can anyone please throw some light on this as to how this can be achieved. Your inputs will be greatly appreciated!!!

I'm testing organic groups (from og-4.7-1.x-dev.tar.gz) under drupal 4.7.x as an anonymous user and have gotten the following errors:

Im currently developing a user community where users can "latch" themselves on to concepts or ideas that they like by either creating a new node or attaching themselves to one that already exists. As more users latch onto this node, points are doled out. However, I'm having problems figuring out the best way to do this. I want to do something similar to the vote up/down module, but instead have it attach the user to the node or remove them from it. Anyone have any reccomendations? Im already implementing the voting api for comment voting, etc.