What are your feelings? Do you feel honored? Do you feel plagiarized? From your question, and I may have it wrong, it sounds like you feel a bit of both. To me, you should feel honored. If an "author-blogger" are using someone else's "ideas", isn't it only honorable they should give that person credit, i.e., "my good friend--insert first name here--suggested I do this." If it bothers you, be honest with her or choose to stop sharing with her.
Example: Dear friend, those are my ideas. I love how you liked my ideas enough to put them in your blog! I would feel perfectly acceptable for you to give me a credit mention my name. That would be great.
The fact is that life is all about learning and sharing experiences. If she is going to share your wisdom and ideas in a written blog, it is proper to give credit where credit is due.
Fact is, it is professional courtesy and common ethical practice to give proper credit where it is due. If you are blogging about an idea that is not truly your own, but was given to you by someone else, it is proper to give them credit.