I agree with
@Martin Kahn I personally also prefer a 2 column layout.
Once you hit three, it can feel cluttered/messy specially when the space is used for ads on both sides, however I have seen some blogs that look great when done right depending on the design (no ads) that I liked.
Keep in mind when making the decision you don't forget the user experience. I would suggest looking at blogs with 2 or 3 columns and see if it is something you and your audience would like. If it's within your budget you can ask to have 2 mock-ups created to get a better feel.
Lastly, check out the adv forums If you are looking to hire, a service, or looking to offer work @
https://www.internetmarketingstar.com/#buy-sell-or-trade-online-advertising-forums.19
---------------------------------------------
Sam and Aaron,
Just a quick question - Any reason why we can't help him through the forums? I seen couple requests in general asking for direct contact from the OPs to help them out instead of sharing & answering the OPs general inquiries.
Please note that I do say the above with all do respect and truly believe you are looking to help the OP in a more direct way...but I think everyone will benefit if we keep the conversations within the forum unless OP wishes to contact someone or asks on their post. If everyone can pitch their own experience, ideas, and thoughts the OP will get better help overall and will help the forums
Just my 2 cents