The Centre For Biblical Spirituality. Donald Whitney's site.
Sheridan Voysey - Sheridan Voysey says he helps people craft meaningful lives through joyful spirituality, recycling adversity, personal vocation and soul friendship.
Practising The Way - John Mark Comer
Following Jesus: Spiritual Disciplines. Peter Cheyne's site.
The Prayer Course - an 8-session course based on the Lord's Prayer
Note also the Toolshed for helpful resources
Lectio 365 - a daily devotional enabling the user to pray the Bible each day
Prayer Course II - Unanswered Prayer
Spiritual Growth Ministries Aotearoa New Zealand
Refresh, SGM's biannual journal of contemplative spirituality. Available in printed form but also as a PDF.