IELTS

http://www.learnielts.com/ielts-writing.htm
http://www.engvid.com/category/english-exams/ielts/
http://www.toeflvocabulary.com/
http://www.goodluckielts.com
http://www.youtube.com/user/themeridianschool
http://www.world-english.org/ielts_free_tests.htm
http://www.essayforum.com

Here you can see the several equivalency tables for TOEFL and IELTS scores.

TOEFL Paper	TOEFL Computer	TOEFL iBT	IELTS Equivalent
625 - 680	263 - 300	113 - 120	7.5 - 9.0
600	250	100	7.0
575	232	90 - 91	6.5
550	213	79 - 80	6.0
525	196	69 - 70	5.5
500	173	59 - 60	5.0
475	152	49 - 50	4.5
450	133	39 - 40	4.0
425	113	29 -30	3.5

Source: English Language Center

This is another conversion table, where the levels proficiency in English are shown.

OEIC	TOEFL Paper	TOEFL CBT	TOEFL IBT	IELTS	VEC Online Score	Approximate VEC Level
0 - 250	0 - 310	0 - 30	0 - 8	0 - 1	0 - 34	Beginner
	310 - 343	33 - 60	9 - 18	1 - 1.5	35 - 38	Middle beginner
255 - 400	347 - 393	63 - 90	19 - 29	2 - 2.5	39 - 45	Upper Beginner
	397 - 433	93 - 120	30 - 40	3 - 3.5	46 - 53	Low Intermediate
405 - 600	437 - 473	123 - 150	41 - 52	4	54 - 57	Middle Intermediate
	477 - 510	153 - 180	53 - 64	4.5 - 5	58 - 65	Intermediate
605 - 780	513 - 547	183 - 210	65 - 78	5.5 - 6	66 - 73	Low advanced
	550 - 587	213 - 240	79 - 95	6.5 - 7	74 - 81	Middle advanced
785 - 900	590 - 637	243 - 270	96 - 110	7.5 - 8	82 - 90	Upper Advanced
905 - 990	640 - 677	273 - 300	111 - 120	8.5 - 9	91 - 100	Upper Advanced
Top Score	Top Score	Top Score	Top Score	Top Score	Top Score	Top Level
990	677	300	120	9	100	Upper Advanced

Source : Vancouver English Centre