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
35 awarded
First bounty you manually award on your own question
161 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
697 awarded
First bounty you offer on another person's question
46 awarded
Question score of 10 or more
1.2k awarded
Question with 1,000 views
9.9k awarded
First bounty you offer on your own question
304 awarded
Ask a question and accept an answer
9.7k awarded
First question with score of 1 or more
14.5k awarded
Asked a question with zero score, no answers, no comments, and low views for a week
1.9k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
198 awarded
Answer score of 10 or more
2.1k awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
769 awarded
Answer your own question with score of 3 or more
336 awarded
Answer a question with score of 1 or more
6k awarded

Participation Badges

Complete "About Me" section of user profile
25k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
1.3k awarded
Leave 10 comments
2k awarded
Earn at least 200 reputation (the daily maximum) in a single day
71 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
68 awarded
One post with score of 2 on meta
248 awarded
Post 10 messages, with 1 or more starred, in chat
128 awarded

Tag Badges

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

Moderation Badges

First flagged post
889 awarded
First rollback
103 awarded
First down vote
888 awarded
Complete at least one review task. This badge is awarded once per review type
1.6k awarded
Delete own post with score of 3 or higher
48 awarded
First edit
9.5k awarded
Edit first post that was inactive for 6 months
385 awarded
First retag
416 awarded
Delete own post with score of -3 or lower
168 awarded
Approve or reject 100 suggested edits
31 awarded
Use 30 votes in a day
131 awarded
First up vote
17.5k awarded
First approved tag synonym
15 awarded
First tag wiki edit
128 awarded
Use the maximum 40 votes in a day
90 awarded

Other Badges

Visited every section of the FAQ (retired)
379 awarded
Share a link to a question later visited by 25 unique IP addresses
185 awarded
Read the entire tour page
3.3k awarded