Should I use a FORM element if I'm not submitting data? Proper (X)HTML markup

In my web application I have a user profile page. That page has these elements on it:

Connect with Twitter
Connect with Facebook
Timezone Select
Language Select

The first two things pop up an OAuth window allowing the user to connect. The last two things are saved with AJAX.

When I'm doing up the page, how should I do the HTML? I think that all of the items should probably be <li> elements in a 'ul' element, opposed to separate 'div' or 'p' elements for each.

But what container element should I use? I am debating between just using a 'div' and using a 'form' that has no action.

I am collecting some data, that's the argument for a 'form' element, but the form is not actually going to be used - there will be no submit button. So that is the argument against it.

What would be the best practice for doing this? If you can provide a link to some supporting documentation that would be helpful, too.

Thanks!

Best practice is making the site work without Javascript, then adding Javascript / AJAX to it incrementally, as enhancements.

Progressive Enhancement (Wikipedia)

Progressive enhancement is a strategy for web design that emphasizes accessibility, semantic HTML markup, and external stylesheet and scripting technologies. Progressive enhancement uses web technologies in a layered fashion that allows everyone to access the basic content and functionality of a web page, using any browser or Internet connection, while also providing those with better bandwidth, more advanced browser software or more experience an enhanced version of the page.

So yes, you should use a form.**

** if you care about progressive enhancement. As discussed in the comments for this answer, in your case, where you don't / can't care, it doesn't matter. Use whatever element you like best.

Purely from an accessibility standpoint, whithout knowing how you want to implement this, It sounds as if the Language Select and Timezone Select functions require the customer to pick from a list. For these, I invision two, small, forms. Each form would contain a label tag that uses the for attribute. Those forms would also have a list input tag. Finally, they would have a submit button. You would give the input tags name attributes. You would paste the values of the name attributes into the for attribute strings for the label tags.

I invision the other two items possibly as small forms with just buttons that would fire functions. They could also be hyperlinks, but best practices in accessibility might dictate that they not be hyperlinks, just in case someone uses a browser that doesn't support scripting, or for whatever reason, someone has scripting turned off.