README.md in mailkick-0.0.1 vs README.md in mailkick-0.0.2

- old
+ new

@@ -102,21 +102,29 @@
 gem 'sendgrid_toolkit'
 ```
 
 Be sure `ENV["SENDGRID_USERNAME"]` and `ENV["SENDGRID_PASSWORD"]` are set.
 
-#### Mandrill [broken]
+#### Mandrill
 
 ```ruby
 gem 'mandrill-api'
 ```
 
 Be sure `ENV["MANDRILL_APIKEY"]` is set.
 
+#### Mailchimp
+
+```ruby
+gem 'gibbon'
+```
+
+Be sure `ENV["MAILCHIMP_API_KEY"]` and `ENV["MAILCHIMP_LIST_ID"]` are set.
+
 #### Other
 
-Send a pull request.
+Will gladly accept pull requests.
 
 ### Advanced
 
 For more control over the services, set them by hand.
 
@@ -134,9 +142,10 @@
 ## Bonus
 
 More great gems for email
 
 - [Roadie](https://github.com/Mange/roadie) - inline CSS
+- [Letter Opener](https://github.com/ryanb/letter_opener) - preview email in development
 
 ## Reference
 
 Change how the user is determined
 