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
1 awarded
First bounty you manually award on your own question
8 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
53 awarded
First bounty you offer on another person's question
6 awarded
Question score of 10 or more
293 awarded
Question with 1,000 views
158 awarded
First bounty you offer on your own question
12 awarded
Ask a question and accept an answer
391 awarded
First question with score of 1 or more
890 awarded
Asked a question with zero score, no answers, no comments, and low views for a week
152 awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
16 awarded
Answer score of 10 or more
64 awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
80 awarded
Answer your own question with score of 3 or more
37 awarded
Answer a question with score of 1 or more
483 awarded

Participation Badges

Complete "About Me" section of user profile
13.4k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
Leave 10 comments
145 awarded
Earn at least 200 reputation (the daily maximum) in a single day
7 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
One post with score of 2 on meta
Post 10 messages, with 1 or more starred, in chat
10 awarded

Tag Badges

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

Moderation Badges

First flagged post
253 awarded
First rollback
18 awarded
First down vote
153 awarded
Complete at least one review task. This badge is awarded once per review type
170 awarded
Delete own post with score of 3 or higher
13 awarded
First edit
637 awarded
Edit first post that was inactive for 6 months
79 awarded
First retag
69 awarded
Delete own post with score of -3 or lower
2 awarded
Approve or reject 100 suggested edits
3 awarded
Use 30 votes in a day
16 awarded
First up vote
3.4k awarded
First approved tag synonym
5 awarded
First tag wiki edit
34 awarded
Use the maximum 40 votes in a day
12 awarded

Other Badges

Visited every section of the FAQ (retired)
157 awarded
Share a link to a question later visited by 25 unique IP addresses
38 awarded
http://stackapps.com/help/badges?tab=general&filter=bronze
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http://stackapps.com/help/badges?tab=general&filter=bronze
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