If you're blogging on the Wordpress platform,the first thing you'll probably do is to install a new Wordpress theme. Even if you've been blogging for years you may still be a theme "addict", wasting a lot of time doing minor modifications that when summed up merely distracts you from blogging itself.

It's actually easy to see why this single aspect of running a blog demands so much attention. With the correct theme, you can accommodate all the nifty little widgets and codes, and may also mean better search engine rankings and tons of fresh traffic every day.

So what are the factors you need to consider to make theme-hunting easier? Here are five important ingredients:

1. Theme Width and Columns

Typically, Wordpress themes come in 2-column or 3-column formats, with widths ranging from 500 pixels to 960 pixels wide. If you're blogging for non-profit purposes, a 2-column theme can look more compact and reader-friendly. Since you have less images of products or links to other sites to display, you can focus exclusively on the content without leading readers away from your site.

On the other hand, if you're blogging for profit, you may want to consider a 3-column Wordpress theme that will be able to accommodate your Google Adsense, Chitika and Text Link Ads codes comfortably without squeezing everything in the content area. 3-column themes allow room for expansion, but in the event that you've filled up all available space with ads, then it's time you removed the non-performers and use only the advertising services that work for that particular blog.

2. Use of Images and Icons

A theme with images and icons can look good, but it rarely increases your web traffic or subscriber base. In fact, most "A-list" bloggers have plain vanilla themes with a simple logo on top. Reducing the amount of images also means faster loading time and less stress on your servers. This vital aspect of server load become apparent only if you have tens of thousands of visitors a day, but it's worth designing for the future.

A image-laden theme also distracts readers from the content itself. This is the reason why blogs like Engadget and Tech Crunch use images intensively in the content areas to add value to a post, but the theme itself is simple and rather minimalist.

Ideally, a theme should allow you to use your own header image for stronger branding purposes, yet replace images and icons with links and text, or just not use them at all unless absolutely necessary.

3. Compatibility with Plugins

Another time-sucking activity is installing plugins that improve the functionality of your site. There's a plugin out there for almost everything you want to do with your blog, but while most of them are free and easily obtainable, it's not always easy to install the plugins and insert the codes into your Wordpress theme.

If your theme is too complicated, it may be a headache to even insert that one line of code you need to make a plugin work. This is often the case with advanced AJAX-based Wordpress themes that have too many files and heavy coding. I've always preferred a simpler themes that stick to the default Wordpress theme as much as possible, so I can cut back on the learning curve and just get on with my life.

Remember that the purpose of your blog is to deliver timely, relevant content to your readers, Any theme that preserves or improves the reader experience is good, any theme that subtracts from the experience is bad.

4. Search Engine Optimization

A lot can be said about search engine optimization, but at the end of the day if you have content worth reading eventually you'll get the rankings you deserve. That doesn't mean that you don't need SEO; it merely means that as far as optimization is concerned all you really need to do is to make sure:

(a) Your tags are formatted properly, with the name of the post first followed by the name of the blog - some themes can do this automatically without modification to the code or use of a plugin

(b) All your blog content titles use the H1 tag, with the main keywords used instead of non-descriptive text for better SEO relevance

(b) Your theme has clean source codes, and if possible all formatting is linked to an external CSS file which you can edit independently

5. Plug-And-Play Ease of Use

Can the theme be installed easily on an existing blog without having to move things around? Can the same theme be used and customized easily on your other blogs? These are some additional things you may want to consider when theme-shopping, especially if every minute of downtime on your blog may mean lost revenue.

While it's hard to make comparisons due to the sheer amount of free and paid themes out there, it's still a good idea to have a test blog site. Test any theme you plan on using, and make sure your test blog is also fitted with all the plugins and miscellaneous widgets used on your real blog. The last thing you want is for your readers start seeing weird error messages on your blog.

At the end of the day, a theme is just a theme. Instead of spending your time installing them, it may be wiser to outsource the task and focus more on your readers. Alternatively, you may also want to consider buying "plug-and-play" themes for a reasonable price. Dennis De' Bernardy of ProWordpress.com has probably one of the best themes around, but if you're short on cash there are certainly cheaper alternatives.