Lookup Plus for SharePoint 2013, It is more than Sharepoint Lookup. Cascaded Lookup, Filtered lookup, Cross-site Lookup /drop down/ and
some controls are free. ("Create new item" link) Visit, http://www.azu.mn
Or watch the channel http://www.youtube.com/watch?v=70-hXWY6ARY&list=PL-5v3e65O1cFMddgCpzIURE_UAsL-oDdW