<title>Web Site Design - RTDesignGroup.com - Web Site Design, Development and Marketing/SEO </title> Is that ok with google?
Looks like I will have to follow you all over (just teasing). In the example you have showed you have repeating keyword, also I would rather advice you keep your targeted keywords as close as possible to the start and the "branding" name at the end. A title I would be most likely use (with the keywords as shown in your example) would be like Website Design - Web Development and Marketing/SEO - RTDesignGroup.com Even tho I would rather eliminate the boolean operator "and" from the title to increase the keyword density in the title. Might sound as spamming, but I think you could give a read to this title element optimization. Hope this helps
While keywords in the title are always good to have google doesn't put as much weight on them as they used to. This is because of people spamming the title bar. Keep in mind your title tag will be shown in search engines so it has to be user friendly also. What good is it if you're number 1 in google but your title doesn't make sense at all so no one clicks on it? You have to manage both readability and keywords which I think you've nailed with your title tag.
Its ok to put set of keywords in title tag that's why other SEO expert suggested the use of 65chars long including spaces,. Just avoid repetition of keywords
I think your Web Site Design keyword is redundant in your title. It's not good in SEO perspective. Just use the format of aaron_nimocks.
I thought there are to many separator you are using in your title. You can have your Title with , (comma) only. and use company name separated by - (hyphen) at the end of title. your title must contain only 65 chars. try to use maximum your targeted keywords in title. Regards, Bloomtools.