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
28 awarded
First bounty you manually award on your own question
140 awarded
Ask a good question on 5 separate days, and maintain a positive question record
586 awarded
First bounty you offered on another person's question
37 awarded
Question score of 10 or more
894 awarded
Question with 1,000 views
8k awarded
First bounty you offer on your own question
254 awarded
Ask a question and accept an answer
8.1k awarded
First question with score of 1 or more
11.6k awarded
Asked a question with zero score, no answers, no comments, and low views for a week
1.5k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
172 awarded
Answer score of 10 or more
1.7k awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
591 awarded
Answer your own question with score of 3 or more
255 awarded
Answer a question with score of 1 or more
5k awarded

Participation Badges

Complete "About Me" section of user profile
19.8k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
586 awarded
Leave 10 comments
1.7k awarded
Earn at least 200 reputation (the daily maximum) in a single day
46 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
66 awarded
One post with score of 2 on meta
209 awarded
Post 10 messages, with 1 or more starred, in chat
113 awarded

Tag Badges

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

Moderation Badges

First flagged post
763 awarded
First rollback
79 awarded
First down vote
754 awarded
Complete at least one review task. This badge is awarded once per review type
1.3k awarded
Delete own post with score of 3 or higher
41 awarded
First edit
7.8k awarded
Edit first post that was inactive for 6 months
289 awarded
First retag
354 awarded
Delete own post with score of -3 or lower
137 awarded
Approve or reject 100 suggested edits
27 awarded
Use 30 votes in a day
99 awarded
First up vote
14.2k awarded
First approved tag synonym
12 awarded
First tag wiki edit
113 awarded
Use the maximum 40 votes in a day
65 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
163 awarded
Read the entire tour page
2.1k awarded