Besides gaining reputation with your questions and answers, you receive badges for being especially helpful. Badges appear on your profile page, flair, and your posts.

Question Badges

First bounty you manually awarded on another person's question
275 awarded
First bounty you manually awarded on your own question
896 awarded
Asked a well-received question on 5 separate days, and maintained a positive question record
2.5k awarded
First bounty you offered on another person's question
570 awarded
Question score of 10 or more
6.9k awarded
Asked a question with 1,000 views
56.1k awarded
First bounty you offered on your own question
1.9k awarded
Asked a question and accepted an answer
26.6k awarded
Asked first question with score of 1 or more
60.3k awarded
Asked a question with zero score, no answers, no comments, and low views for a week
23.1k awarded

Answer Badges

Edited and answered 1 question (both actions within 12 hours, answer score > 0)
848 awarded
Answer score of 10 or more
10.1k awarded
Answered more than 30 days later as first answer scoring 2 or more
6k awarded
Answered your own question with score of 3 or more
1.9k awarded
Answered first question with score of 1 or more
36.3k awarded

Participation Badges

Completed "About Me" section of user profile
52.5k awarded
Visited an election during any phase of an active election and had enough reputation to cast a vote
3.2k awarded
Left 10 comments
8.4k awarded
Earned at least 200 reputation (the daily maximum) in a single day
395 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
67 awarded
One post with score of 2 on meta
1k awarded
Posted 10 messages, with 1 or more starred, in chat
362 awarded

Tag Badges

You must have a total score of 100 in at least 20 non-community wiki answers to achieve this badge.
417 awarded

Moderation Badges

First flagged post
4k awarded
First rollback
511 awarded
First down vote
4.2k awarded
Completed at least one review task. This badge is awarded once per review type
5.8k awarded
Deleted own post with score of 3 or higher
152 awarded
First edit
38.9k awarded
Edited first post that was inactive for 6 months
2.4k awarded
First retag
1.9k awarded
Deleted own post with score of -3 or lower
290 awarded
Approved or rejected 100 suggested edits
152 awarded
Used 30 votes in a day
518 awarded
First up vote
46.7k awarded
First approved tag synonym
41 awarded
First tag wiki edit
384 awarded
Used the maximum 40 votes in a day
330 awarded

Other Badges

Visited every section of the FAQ (retired)
1.2k awarded
Shared a link to a question that was visited by 25 unique IP addresses
1.6k awarded
Read the entire tour page
10.1k awarded