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
37 awarded
First bounty you manually award on your own question
187 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
432 awarded
First bounty you offer on another person's question
124 awarded
Question score of 10 or more
1.8k awarded
Question with 1,000 views
11.2k awarded
First bounty you offer on your own question
467 awarded
Ask a question and accept an answer
6.1k awarded
First question with score of 1 or more
14.1k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
131 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
2.1k awarded
Answer your own question with score of 3 or more
449 awarded
Answer a question with score of 1 or more
10.5k awarded

Participation Badges

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

Tag Badges

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

Moderation Badges

First flagged post
1.8k awarded
First rollback
125 awarded
First down vote
1.3k awarded
Complete at least one review task. This badge is awarded once per review type
911 awarded
Delete own post with score of 3 or higher
40 awarded
First edit
7k awarded
Edit first post that was inactive for 6 months
649 awarded
First retag
366 awarded
Delete own post with score of -3 or lower
246 awarded
Approve or reject 100 suggested edits
19 awarded
Use 30 votes in a day
148 awarded
First up vote
27.4k awarded
First approved tag synonym
10 awarded
First tag wiki edit
111 awarded
Use the maximum 40 votes in a day
89 awarded

Other Badges

Share a link to a question later visited by 25 unique IP addresses
493 awarded
Read the entire tour page
8.8k awarded

Retired Badges

Visited every section of the FAQ
307 awarded
Asked a question with zero score, no answers, no comments, and low views for a week
3.3k awarded