Avoid using Frames!

When creating a main site for Submission. Most major search engines do not support them and if you do include them in your web pages then you can actually restrict your listing potential, doing your site more damage than good.

Example:
If the page HTTP://www.URL.com/Index.HTML is a frame Entry Page, it may contain very few lines of index-able text as well as readable HTML code. Instead, these pages contain only small amounts of code to create the frames, which in turn forces the userÂ’s browser to load other pages within them. The main problem with using frames is that most search engines only see the frame loader page and ignore the whole page contained within.

Moreover, when a search engine indexes your frames, think about this. Your visitors may enter your page on an incorrectly indexed frame url that is not your main frame. They  neither see what you intended them to see nor find the information they sought, resulting in a lost Visitor when they Hit the back button to leave your site.

If you simply must use frames, you should by all means submit lead-in pages that are not placed in frames. This means you will be able to place all of your nice frame-based pages in other locations. It will help to ensure that you still obtain a good listing within the search engines. Make sure that you have a decent amount of words on at least a few pages on your website and remember to keep them solely focused on the topics that relate the most to your site.

Google can nowadays read frames, but there are plenty of Search engines out there that still cannot read frames.

See also "What can I do if my site has frames?"