I was delighted to read the other day that Sphinx poetry pamphlet reviews are open for business again (see here). What's more, they're explicitly seeking "OPOI" pieces: i.e. "One Point Of Interest".
This format is especially interesting in the context of short, blog-length reviews. Instead of a whistle-stop, sometimes superficial tour round a collection, the reader finds an in-depth focus on a specific point. Furthermore, true to the Sphinx tradition of juxtaposing different reviews of one pamphlet, the hope is that some chapbooks will attract multiple viewpoints, each picking up on a single aspect, as if engaging in an implicit conversation.
I'll be following developments with interest. For the moment, I'd recommend reading the review by Helena Nelson of Clare Best's remarkable new pamphlet, Cell.