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 award on another person's question
48 awarded
First bounty you manually award on your own question
76 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
500 awarded
First bounty you offer on another person's question
60 awarded
Question score of 10 or more
3.9k awarded
Question with 1,000 views
4.3k awarded
First bounty you offer on your own question
92 awarded
Ask a question and accept an answer
2.6k awarded
First question with score of 1 or more
3.9k awarded
Asked a question with zero score, no answers, no comments, and low views for a week
10 awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
149 awarded
Answer score of 10 or more
7.9k awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
144 awarded
Answer your own question with score of 3 or more
202 awarded
Answer a question with score of 1 or more
3.6k awarded

Participation Badges

Complete "About Me" section of user profile
6.3k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
582 awarded
Leave 10 comments
1k awarded
Earn at least 200 reputation (the daily maximum) in a single day
237 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
44 awarded
One post with score of 2 on meta
371 awarded
Post 10 messages, with 1 or more starred, in chat
188 awarded

Tag Badges

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

Moderation Badges

First flagged post
563 awarded
First rollback
96 awarded
First down vote
1k awarded
Complete at least one review task. This badge is awarded once per review type
909 awarded
Delete own post with score of 3 or higher
61 awarded
First edit
2.8k awarded
Edit first post that was inactive for 6 months
202 awarded
First retag
333 awarded
Delete own post with score of -3 or lower
205 awarded
Approve or reject 100 suggested edits
15 awarded
Use 30 votes in a day
153 awarded
First up vote
5.5k awarded
First approved tag synonym
16 awarded
First tag wiki edit
159 awarded
Use the maximum 40 votes in a day
75 awarded

Other Badges

Visited every section of the FAQ (retired)
204 awarded
Share a link to a question later visited by 25 unique IP addresses
137 awarded
Read the entire tour page
1.6k awarded