Is this a good idea you ask. Look at the before and after image below.
My blog name "SEO Marketing" would usually come first in the
Title Bar. This does not help SEO (Search Engine Optimization) as the
keyword of my post is "Infopreneur Helpful Hints" which would
appear after my blog name.
This can be fixed very quickly.
When playing around in your HTML it is best to make a copy
and put it on a notepad just in case you make an error and
need to start over.
1-Click on your dashboard
3-Click "edit HTML"
4-Search for this tag <title><data:blog.pageTitle/
></title>about nine or ten lines down.
Replace it with <title><data:blog.pageName/></title>
Each time someone clicks on one of your post, the title
bar will show your post title instead of your blog name.
Soooo much better for the spider. This is an old technique
but yet still very effective.
More on : Learn SEO Marketing