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
87 awarded
First bounty you manually award on your own question
341 awarded
Ask a good question on 5 separate days, and maintain a positive question record
1.3k awarded
First bounty you offer on another person's question
147 awarded
Question score of 10 or more
3k awarded
Question with 1,000 views
7.5k awarded
First bounty you offer on your own question
597 awarded
Ask a question and accept an answer
9.7k awarded
First question with score of 1 or more
16.3k awarded
Asked a question with zero score, no answers, no comments, and low views for a week
1.4k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
386 awarded
Answer score of 10 or more
4.4k awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
1.2k awarded
Answer your own question with score of 3 or more
161 awarded
Answer a question with score of 1 or more
7.4k awarded

Participation Badges

Complete "About Me" section of user profile
16.9k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
442 awarded
Leave 10 comments
3.5k awarded
Earn at least 200 reputation (the daily maximum) in a single day
240 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
56 awarded
One post with score of 2 on meta
566 awarded
Post 10 messages, with 1 or more starred, in chat
197 awarded

Tag Badges

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

Moderation Badges

First flagged post
1.6k awarded
First rollback
181 awarded
First down vote
2.1k awarded
Complete at least one review task. This badge is awarded once per review type
2.5k awarded
Delete own post with score of 3 or higher
104 awarded
First edit
11.2k awarded
Edit first post that was inactive for 6 months
528 awarded
First retag
655 awarded
Delete own post with score of -3 or lower
385 awarded
Approve or reject 100 suggested edits
48 awarded
Use 30 votes in a day
231 awarded
First up vote
15k awarded
First approved tag synonym
11 awarded
First tag wiki edit
119 awarded
Use the maximum 40 votes in a day
135 awarded

Other Badges

Visited every section of the FAQ (retired)
270 awarded
Share a link to a question later visited by 25 unique IP addresses
195 awarded
Read the entire tour page
3.9k awarded