I have my main website hosted by dreamhost. From there people can sign up to be on my newsletter.

I also have another website that I use as a blog. I would like to somehow link it via dreamhost announce email list, and still have the flexibility to send out an occassional announcement, using my email announce list.

Is it best just to copy a link into the email site?

I guess what I would like is to send an email, with my newsletter (blog) attached.