A few blogs related to vocations and Dominicans that caught my eye recently and are worth having a look at:
An excellent resource on Dominican history associated with the Dominican Province of Saint Joseph. A group of young people (mostly from the United States) who are discerning their vocation host a very good blog here. A relatively new blog with a selection of video resources can be found here, and they have some footage with some Dominican interest. I have long admired the people who present the Roman Catholic Vocations blog, and is very definitely worth looking at. Finally, the Dominican nuns of Summit, New Jersey, USA have a very fine and upbeat blog which I like and can be found here.