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
19 awarded
First bounty you manually award on your own question
66 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
513 awarded
First bounty you offer on another person's question
31 awarded
Question score of 10 or more
2.3k awarded
Question with 1,000 views
7.1k awarded
First bounty you offer on your own question
159 awarded
Ask a question and accept an answer
6.3k awarded
First question with score of 1 or more
12.8k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
148 awarded
Answer score of 10 or more
5.4k awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
697 awarded
Answer your own question with score of 3 or more
170 awarded
Answer a question with score of 1 or more
5.4k awarded

Participation Badges

Complete "About Me" section of user profile
22k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
438 awarded
Leave 10 comments
1.8k awarded
Earn at least 200 reputation (the daily maximum) in a single day
296 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
69 awarded
One post with score of 2 on meta
249 awarded
Post 10 messages, with 1 or more starred, in chat
49 awarded

Tag Badges

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

Moderation Badges

First flagged post
1.5k awarded
First rollback
101 awarded
First down vote
1.5k awarded
Complete at least one review task. This badge is awarded once per review type
950 awarded
Delete own post with score of 3 or higher
48 awarded
First edit
6.2k awarded
Edit first post that was inactive for 6 months
332 awarded
First retag
397 awarded
Delete own post with score of -3 or lower
140 awarded
Approve or reject 100 suggested edits
22 awarded
Use 30 votes in a day
149 awarded
First up vote
15.7k awarded
First approved tag synonym
13 awarded
First tag wiki edit
88 awarded
Use the maximum 40 votes in a day
90 awarded

Other Badges

Share a link to a question later visited by 25 unique IP addresses
172 awarded
Read the entire tour page
4k awarded

Retired Badges

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