Facebook recently upgraded the functionality of several developer plug-ins. These new scripts are a snap to include and function very smoothly for visitors. No need to manage authentication or ask a user to log in, Facebook handles everything in convenient IFrames. Any reader with an active Facebook account need just visit your site and they have access to several nice features.
The Like button has long been a means of showing approval for interesting content. Facebook recently upgraded the functionality to include well constructed wall posts similar to a shared link. The page title, address, a thumbnail and brief snippet of text are included. As a Blogger this is a great opportunity to unobtrusively get more eyes on your content by allowing visitors convenient One click sharing.
Placing the Like Button
Perhaps the most logical place for a Like button as at the foot of each post. This can be done in several ways, though the most efficient is by modifying the Blog widget template. Start by opening up Design->Edit HTML and check Expand Widget Templates. Now hit Ctrl+F and search for <data:post.body/>. Below that line paste this code:
<script src='http://connect.facebook.net/en_US/all.js#xfbml=1'/>This places a like button up to 300px wide to accommodate small profile pictures for those who Like the post. You may further style the button spacing, size and include a custom font if you wish.
<fb:like expr:href='data:post.url' font='' show_faces='true' width='300px'/>
Alternative Button Placement
Evaluate your design desires and find the right place for your blog. I chose to place mine floated left within the post footer for instance and only on individual item pages since I use jump breaks on my main page at this time. Regardless of placement th0se two lines are all you need for Like functionality. However, I should note the href parameter used in this example is only accessible within each posts header, body and footer.
Facebook has greatly simplified and improved the functionality of the Like button and other plug-ins I may discuss later. Integration is a cinch and it should enhance visitor experience as well as publicity for your blog. Give it a try, I don't think you'll be disappointed. For help with your implementation I may be contacted through comments here, including Facebook comments and a Tweet box coincidentally.