On this page you can find a list of useful FCE-related websites:
FCE Handbook - https://www.teachers.cambridgeesol.org/ts/digitalAssets/109701_fce_hb_dec08.pdf
The handbook is more for teachers than candidates and has 90 pages, but there's some useful information in it.
Free FCE Exercises - http://www.ihbristol.com/learn-online/exercise-esol.php
An extremely useful page from International House Bristol. Lots of exercises from the Use of English exam for FCE, CAE and CPE.
FCE Resources - http://www.flo-joe.co.uk/teachers/resources/fce.htm
FCE practice tests, worksheets, vocabulary record sheets and self-study marksheets from flo-joe.co.uk.
FCE Speaking - http://practiseenglish.blogspot.com/2009/05/fce-speaking-practice-part-2.html
Some nice examples of Speaking Part 2 photographs.
Online grammar exercises - http://www.learnenglishfeelgood.com/esl-english-grammar-exercises.html
Lots of useful exercises, including a section on phrasal verbs.
Six FCE exercises - http://www.usingenglish.com/comprehension/first+certificate+in+english.html