Keyword density is a key issue in SEO. A website needs to show that it is tightly focused around a particular keyword. Category archives for blogs are an easy way to increase keyword density, and I've found an easy way to have categorical archives with Blogger.
What you'll need: -) Some time to pick your keywords, perform some searches on your blog, and edit your Blogger template -) Aaron Wall's SEO extension for Firefox (optional). It's a free download and easy install, though, and I highly recommend it. -) Firefox, obviously, if you're going to do the best research you can, which means using the Firefox extension mentioned above. This is also a free download, and anyways, Firefox is a better browser than Internet Explorer, so you'll be doing yourself a service getting it. -- Take 30 seconds to subscribe to my free newsletter. --
(Incidentally, the Google tool offers free spreadsheet downloads of your keywords, which is an easy way to save your research.)
2) Search your Blogger blog for each keyword.
For example, search for "Google", and then save the search URL. Do this for each keyword, saving the URLs every time (the excel spreadsheet would be useful again, here).
3) Link to each keyword search on your Blogger subdomain.
First, post the links to your sidebar for easy access to anyone browsing your blog. They'll look something like this:
a href="searchcityseo.blogspot.com for Google" Google /a a href="searchcityseo.blogspot.com for Yahoo" Yahoo /a a href="searchcityseo.blogspot.com for local search" local search /a a href="searchcityseo.blogspot.com for Montreal" Montreal /a a href="searchcityseo.blogspot.com for SEO specialist" SEO specialist /a
and so on. Obviously, the URLs look different and you need to use proper < > brackets for the html coding. Nonetheless, that's the first part of your category archives done.
Second, copy all the links you just coded into your sidebar and place them in your post template (under Blogger's Settings tab, click formatting). Now, when you post, you just have to choose what keywords the post is about, and delete the rest. An added bonus is that this category hack makes you focus on writing about your keywords, thus increasing the focus of your blog.