Once you're logged in, you'll see a "new beer" button on each brewery's page. Click it, and you'll be prompted for the beer's name.
Use the name that the brewery uses to refer to the beer. For example, use "Natural Light", not "Natty Light".
Leave the brewery's name off unless the rest of the name is something generic. The brewery's name will always beer shown with the beer, so repetition isn't necessary. For example, "Harpoon IPA" is fine because IPA is a generic term, but "UFO Hefeweizen" is unique enough that it doesn't need "Harpoon" on the front.
If you can't find a brewery here, head over to the Breweries list. If you're logged in, you'll find a "new brewery" button there. Click it, and you'll be prompted for the brewery's name, address, and website.
Use the proper name of the brewery.
If the brewery is a subsidiary of a larger corporation (for example, InBev, A-B, Miller), consider including the larger corp.'s name in parentheses afterward.
Street addresses are encouraged, to prevent multiple breweries in the same city from stacking upon each other on the map.
Link to the top-level of the brewery's website, not to their beer list. (for example, use "http://www.guinness.com" instead of "http://www.guinness.com/us_en/beer/default.aspx")
If the beer you just added isn't showing up in the lists you expect it to show up in, then either it's being hidden by your beer filters, or your browser's cache hasn't noticed the change yet. Play with your filters, or wait a few minutes, and it will show up.
Just click the "Report" button on the beer's/brewery's page. Indicate what the problem is on the form that you are presented. Submit the form, and an admin will take care of the issue. Thanks for improving BeerRiot's list!
In short, no. We'll remove anything we don't consider a form of beer.
Of course, "beer" is a pretty wide category, and we'll acknowledge things like barley wine and malt beverages made with grains other than barley or herbs other than hops. But, wine, hard alcohol, and soft drinks are right out.
Yes! We love homebrew here, especially if you also post the recipe in the comments. Just make up a name for your "brewery" (it may be a good idea to include "homebrew" in the title).
Be forewarned, however, that due to the limited-distribution scale of your homebrew, voting on them is likely to influence your grouping more than other beers.
Tags are a way to capture extra information about beers. For example, if a beer is homemade, it would be appropriate to tag it as homebrew. You might also consider tagging organic beers as organic, gluten-free beers as gluten-free, etc.
Another use of tags is to categorize beers by their style. One might consider tagging stouts stout, IPAs IPA, etc. That will make it easy for everyone to find a certain category, if that's what they're looking for.
What tags are not designed for is labeling beers as good, bad, or any other rating of their quality. The whole point of BeerRiot is that people disagree about what constitutes good and bad in beers. As such, tags of that nature are blocked from use.
The only limits on tags are that they can be no longer than 32 characters, and that they can't be only numerals. The range is open otherwise.