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 awarded on another person's question
41 awarded
First bounty you manually awarded on your own question
265 awarded
Asked a well-received question on 5 separate days, and maintained a positive question record
900 awarded
First bounty you offered on another person's question
76 awarded
Question score of 10 or more
1.6k awarded
Asked a question with 1,000 views
4.2k awarded
First bounty you offered on your own question
595 awarded
Asked a question and accepted an answer
6.2k awarded
Asked first question with score of 1 or more
14.2k awarded
Asked a question with no votes, no answers, no comments, and low views for a week
2.9k awarded

Answer Badges

Answer score of 10 or more
2.5k awarded
Answered more than 30 days later as first answer scoring 2 or more
955 awarded
Answered your own question with score of 3 or more
163 awarded
Answered first question with score of 1 or more
4.5k awarded

Participation Badges

Completed all user profile fields
4.3k awarded
Visited an election during any phase of an active election and had enough reputation to cast a vote
446 awarded
Left 10 comments
2k awarded
Earned at least 200 reputation (the daily maximum) in a single day
67 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
77 awarded
One post with score of 2 on meta
303 awarded
Posted 10 messages, with 1 or more starred, in chat
38 awarded

Tag Badges

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

Moderation Badges

First flagged post
629 awarded
First rollback
79 awarded
First down vote
829 awarded
Completed at least one review task. This badge is awarded once per review type
953 awarded
Deleted own post with score of 3 or higher
78 awarded
First edit
8k awarded
Edited first post that was inactive for 6 months
248 awarded
First retag
402 awarded
Deleted own post with score of -3 or lower
42 awarded
Approved or rejected 100 suggested edits
20 awarded
Used 30 votes in a day
104 awarded
First up vote
8.4k awarded
First approved tag synonym
13 awarded
First tag wiki edit
102 awarded
Used the maximum 40 votes in a day
53 awarded

Other Badges

Visited every section of the FAQ (retired)
266 awarded
Shared a link to a question that was visited by 25 unique IP addresses
194 awarded
Read the entire about page
1.4k awarded