Because I would like that too.
Simply email me at firstname.lastname@example.org and tell me about whatever it is you'd like to advertise, then when I know you and my blog will be a good match, you'll be an added treasure!
Ways you can advertise on my blog are:
Paying to have your 125x125 button on my sidebar (this includes a featured post all about you!)
Hosting a giveaway on my blog (having me do a review with the giveaway is always welcome). When you host a giveaway on my blog, your button will be advertised for a whole month free of charge!
Contact me to get a price quote!
We'll be delighted to have you on board!