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
40 awarded
First bounty you manually award on your own question
183 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
798 awarded
First bounty you offer on another person's question
52 awarded
Question score of 10 or more
1.4k awarded
Question with 1,000 views
11.3k awarded
First bounty you offer on your own question
348 awarded
Ask a question and accept an answer
10.9k awarded
First question with score of 1 or more
16.7k awarded
Asked a question with zero score, no answers, no comments, and low views for a week
2.1k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
228 awarded
Answer score of 10 or more
2.5k awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
911 awarded
Answer your own question with score of 3 or more
408 awarded
Answer a question with score of 1 or more
6.9k awarded

Participation Badges

Complete "About Me" section of user profile
28.9k 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
2.3k awarded
Earn at least 200 reputation (the daily maximum) in a single day
86 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
265 awarded
Post 10 messages, with 1 or more starred, in chat
142 awarded

Tag Badges

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

Moderation Badges

First flagged post
973 awarded
First rollback
115 awarded
First down vote
990 awarded
Complete at least one review task. This badge is awarded once per review type
1.8k awarded
Delete own post with score of 3 or higher
56 awarded
First edit
10.9k awarded
Edit first post that was inactive for 6 months
448 awarded
First retag
462 awarded
Delete own post with score of -3 or lower
205 awarded
Approve or reject 100 suggested edits
34 awarded
Use 30 votes in a day
149 awarded
First up vote
20.2k awarded
First approved tag synonym
16 awarded
First tag wiki edit
135 awarded
Use the maximum 40 votes in a day
104 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
199 awarded
Read the entire tour page
4.5k awarded