This is a message for B1 students.
Here you are a list of list of links where you can find listening practice (remember you have these links in this blog, on the right):
www.podcastsinenglish.com (level 1)
www.real-english.com (beginner level)
www.esl-lab.com (easy level)
www.elllo.org --> no levels in this website, so just relax -'cause it's difficult- listen and read. This kind of listening will help you get features of natural English speaking.
http://www.eslpod.com/website/index_new.html (American English)
And, of course, listen and read your Oxford bookworms books.
Improving listening takes time, so, as I said before, relax and practice as much as you can!
Have a nice day!