ENGLISLEARNER Very complete site for Grammar practice.
ESL LOUNGE Also quite complete.
ENGLISHMEDIALAB All sorts of quizzes, games and exercises about Grammar and Vocabulary.
ESL BLUES Fantastic site on Grammar and common errors.
FREE ENGLISH STUDY Grammar practice and interaction with other learners of English.
TEXT IT FIX IT Free Grammar e-book to download in PDF.
TIMESAVER Another downloadable Pre-Intermediate Grammar book.
ONESTOPENGLISH Another complete site for Grammar.
BBC LEARN ENGLISH You will find all kinds of resources on this website.
PERFECT ENGLISH GRAMMAR. STATIVE VERBS (list and video)
VOCABULARY
The Englishvocabulary.com
English Vocabulary Through Images
Learn English Through Pictures
Languageguide.org