How I named my startup
theagileplanner.com
theagileplanner.com
Whether we like it or not, these products often end up needing a website which need a domain. theagileplanner.com is a substandard name because someone else owns agile planner.com - most users will not remember the "the" and leave it off the domain when they type it in or write it down. It is okay to refer to the "the" in a product or company name in your copy, but generally fatal when it comes to domain names - unless you own the corresponding version of the domain with the "the".
In most cases though. It simply doesn't matter as long as your aren't being completely retarded about it.
No name is going to save your company.
So instead go with something you like. That way even if your company goes bad you don't start blaming your name for the misery.
If a company does have a longer name, users will end up coming up with a two-syllable nickname. For example, Huffington Post -> Huff Po.
Lots of folks try to name their company after what it does, following the FreeCreditReport.com model, but it's kinda lame and not very memorable, especially if you're getting started.
Creating a unique name & domain would help you in the long run for search engines and brand recognition.
Searching for "the agile planner" on google has 1,950,000 results.