I have not done lots of affiliate marketing for others yet, but I am still learning some stuff about it. I really would love to learn PHP and go to the Affiliate Summit, but until then I will learn bits and pieces at a time.

Having affiliates can show you some of the unique ways they market. Most affiliates do not push stuff very hard, but around 1 or 2% do. Some will create review sites and then even go so far as to tell you how they are marketing them.

I also am an affiliate for a few companies. It looks like some of them are cross referencing internal information with linkage data to competing sites to push stuff at affiliates.

Where are your favorite sources for affiliate information?

I love Lee's answers to ideas cheap businesses throw his way while trying to bilk out SEO services for next to nothing.

If you sell SEO services you will love Just Say No to Discount SEO.

I recently took a gander at the Google Modules site and saw a few great extensions. Some of them are a bit random and don't apply to me, but many of them were cool, like the to do list or the Technorati Mini extension which searches for SeoBook.com citations once a minute. (please note to track your own blog you have to view source, copy it, change the s= URL to your own URL, upload it to your server, then add it to your customized Google home page. Niall probably should have made the to track bit something you could enter after you uploaded it.)

Google is going to use many vertical databases to structure information. They also are going to allow users to create their own home pages as they see fit.

I believe one of the extensions was for horse racing. Getting links or visitors into a horse racing site is probably not a cheap and easy task, but imagine the lead value of a customer who loves horse racing so much that they have to be able to access the latest odds from their home page.

If your extension is cool enough it may provide direct traffic AND link popularity. Those who care about something enough to customize their home page for it are likely they same type of people who would also have websites and tell friends what they put on their home page.

I have not looked through all the extensions yet, but creating free extensions is perfect for concert ticket brokers, exotic travel sites, currency exchange sites, or other sites that provide free useful service.

Even if you provide a boring service you may get a few additional citations by spending 10 minutes creating a free Google Modules XML extension. The same can be said for browser extensions (think Mozdev) or other similar free distribution channels.

Not something I know much about yet, but recently there have been a number of good posts on buying and selling domains.

• 
  ShoeMoney: My tips for buying domains that are taken

• ShoeMoney: Whats my domain worth and how do I handle the sale?
• Jim Boykin had a few good domain buying comments on this post.

Legitmate honest feedback is exceptionally hard to get and exceptionally valuable.

I recently got an email from a newsletter offering me something for free, only conditionally though. I could a free gift if - and only if - I left an audio testimonial about how wonderful a different product or service is.

Is that authentic? Is it honest or is it a bit scammy? What markets is that a good idea for and what markets is that a bad idea for? Are there better ways to build your brand reputation?