Comment by utsmokingaces

I cannot believe why so many people are so enamored with Seth Goldin's grossly glorified common sense.

    * Word spreads. 

No shit. Word of mouth, that is really important.

   * Needs are similar. 

Wow you need to pick a market with multiple customers. Brilliant!!!

    * Budgets exist.

Make sure your Customers have money! Don't know if you guys know this, if your customers don't have money, they cannot pay you!

     * Barriers exist.

Who has not heard of barriers to entry? Well IMHO, barrier to entry from the technology standpoint is not that important. There are many programmer than can make twitter, youtube, wordpress clones...etc. Execution is more crucial