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
36 awarded
First bounty you manually award on your own question
289 awarded
Ask a good question on 5 separate days, and maintain a positive question record
658 awarded
First bounty you offer on another person's question
66 awarded
Question score of 10 or more
562 awarded
Question with 1,000 views
10.3k awarded
First bounty you offer on your own question
527 awarded
Ask a question and accept an answer
10k awarded
First question with score of 1 or more
10.1k awarded
Asked a question with zero score, no answers, no comments, and low views for a week
5.5k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
185 awarded
Answer score of 10 or more
969 awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
980 awarded
Answer your own question with score of 3 or more
337 awarded
Answer a question with score of 1 or more
6.6k awarded

Participation Badges

Complete "About Me" section of user profile
16.7k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
558 awarded
Leave 10 comments
3.2k awarded
Earn at least 200 reputation (the daily maximum) in a single day
38 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
72 awarded
One post with score of 2 on meta
204 awarded
Post 10 messages, with 1 or more starred, in chat
73 awarded

Tag Badges

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

Moderation Badges

First flagged post
935 awarded
First rollback
115 awarded
First down vote
871 awarded
Complete at least one review task. This badge is awarded once per review type
1k awarded
Delete own post with score of 3 or higher
12 awarded
First edit
11k awarded
Edit first post that was inactive for 6 months
443 awarded
First retag
320 awarded
Delete own post with score of -3 or lower
168 awarded
Approve or reject 100 suggested edits
21 awarded
Use 30 votes in a day
110 awarded
First up vote
9.4k awarded
First approved tag synonym
11 awarded
First tag wiki edit
79 awarded
Use the maximum 40 votes in a day
73 awarded

Other Badges

Visited every section of the FAQ (retired)
410 awarded
Share a link to a question later visited by 25 unique IP addresses
425 awarded
Read the entire tour page
2.1k awarded