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
112 awarded
First bounty you manually award on your own question
185 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
1.2k awarded
First bounty you offer on another person's question
138 awarded
Question score of 10 or more
12.5k awarded
Question with 1,000 views
18.6k awarded
First bounty you offer on your own question
243 awarded
Ask a question and accept an answer
6.4k awarded
First question with score of 1 or more
10.5k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
369 awarded
Answer score of 10 or more
25k awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
522 awarded
Answer your own question with score of 3 or more
443 awarded
Answer a question with score of 1 or more
8k awarded

Participation Badges

Complete "About Me" section of user profile
14.9k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
2.2k awarded
Leave 10 comments
2.4k awarded
Earn at least 200 reputation (the daily maximum) in a single day
1.2k awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
45 awarded
One post with score of 2 on meta
737 awarded
Post 10 messages, with 1 or more starred, in chat
419 awarded

Tag Badges

You must have a total score of 100 in at least 20 non-community wiki answers to achieve this badge.
1k awarded

Moderation Badges

First flagged post
1.4k awarded
First rollback
306 awarded
First down vote
2.6k awarded
Complete at least one review task. This badge is awarded once per review type
2.6k awarded
Delete own post with score of 3 or higher
194 awarded
First edit
7.6k awarded
Edit first post that was inactive for 6 months
497 awarded
First retag
708 awarded
Delete own post with score of -3 or lower
625 awarded
Approve or reject 100 suggested edits
36 awarded
Use 30 votes in a day
450 awarded
First up vote
13.2k awarded
First approved tag synonym
21 awarded
First tag wiki edit
266 awarded
Use the maximum 40 votes in a day
283 awarded

Other Badges

Share a link to a post later visited by 25 unique IP addresses
772 awarded
Read the entire tour page
6.9k awarded

Retired Badges

Visited every section of the FAQ
201 awarded
Asked a question with zero score, no answers, no comments, and low views for a week
25 awarded