Resource
Online
Official Website
Blogger on Wikipedia
Official Blogger Blog
Blogger Status Dashboard
Support
Blogger Help Info
Blogger Help Forum
StackOverflow Channel
Download
Blogger IDs and classes in the templates [spanish, .pdf]
Blogger: Frequently Asked Questions [french, .pdf]
Templates
Catalogs
BTemplates
EBlogTemplates
BlogCrowds
BloggerThemes
ThemeForest (paid)
Templateism (paid)
DeluxeTemplates
Development
Change the design of blog
Change blog layout
Customize CSS tags for layouts
Page elements tags for layouts
Widget tags for layouts
Understanding Blogger templates
Blogger template explanation: sections, widgets, includables, includes, b: namespace
Blogger template explanation: data access, data: namespace elements
Blogger template explanation: how to use expr: namespace, customize links
Blogger template skin explanation (French)
Structure of custom Blogger themes
Understanding and using Blogger conditional tags
XHTML Blogger (Indonesian)
What are exactly Blogger's Lambda expressions?
Blogger theme data tags for widgets
List of Blogger layout data tags
List of Blogger template tags (Japanese)
Gadgets
Develpment
Google Gadget Developer's Guide
Blogger Gadget Developer's Guide
Best UI practices for Blogger gadgets
Gadgets XML reference
Blogger Developer Group
How to develop Blogger gadgets from scratch
Using
Submit a gadget for Blogger
Import gadget to blog
Tips and tricks
Blog design
How to define custom variables in Blogger
Using Blogger page types to affect blog design
How to remove Blogger CSS widget bundle
How to correctly add JavaScript codes in Blogger
Blog pages
7 Blogger page types: analysis, code snippets, data matrix
Custom 404 error page for Blogger
How to set the URL for Blogger posts
Widgets
How to show/hide widgets on specific pages in Blogger
How to add administration links widget (French)
How to personalize status messages (French)
Feeds
Blogger JSON feed API
Understanding the Atom/RSS feed
Pagination
Infinite post loading for Blogger
Show next and previous post title in navigation
How to change or remove the newer and older posts links
Optimization
Setting up robots.txt
How to optimize Blogger heading structure for H1, H2, H3 tags
How to implement OpenGraph protocol
How to implement Twitter Cards
Getting blog to have Twitter Summary Cards
How to add Twitter Cards
Solving a problem with images for Twitter Cards