it is also worth mentioning vs also worth mentioning

Some examples from the web:

• It is also worth mentioning that the presidents of national authorities in the field of broadcasting hold regular meetings that are chaired by the Member of the Commission responsible for Information Society and Media.
• It is also worth mentioning the support for the introduction of the euro, acknowledging its positive effects, as both the Council and the European Central Bank have done at the Madrid Summit.
• It is also worth mentioning that Guatemala is a priority country under the European Initiative for Democracy and Human Rights.
• It is also worth mentioning that approximately 8 billion ECUs per annum has been given in support by the EU to Eastern and Central European countries during the period 1990-1994.
• On the issue of Iraq, it is also worth mentioning that the Council for the first time has invited Mr Brok and myself to go to Madrid for the donors' conference, an extremely generous and welcome offer.
• For a project based largely on the use of new technologies, it is also worth mentioning the eTwinning action of the eLearning programme, which allows for the creation and development of virtual educational projects between schools in Europe.
• As far as the United States is concerned it is also worth mentioning that while the value of the US dollar decreased vis-à-vis the euro over the last two years, the EU actually increased its trade surplus with the US.
• It is also worth mentioning that, regarding the evolution of prices, the reports contradict each other.
• It is also worth mentioning that it will become easier to reimburse expenditure.
• It is also worth mentioning the issue of national safety rules and their monitoring at Community level.
• It is also worth mentioning that assistance will be available through this Fund.
• It is also worth mentioning that at present the Commission is negotiating a readmission agreement with Albania.
• It is also worth mentioning that the rapporteur and the LIBE committee held a hearing with NGOs working in the field of fundamental rights on 18th October 2007.
• It is also worth mentioning that there is a high degree of heterogeneity in the indebtedness of euro area households.
• It is also worth mentioning in passing that only a dozen or so of the over 3000 Buddhist monasteries that were once found in Tibet are still in existence.
• It is also worth mentioning that the Federal Government has announced a substantial increase in the resources to be devoted to rebuilding Chechnya.
• It is also worth mentioning that this is a mainstreaming programme, because there remains a shortcoming in the report.
• It is also worth mentioning that the EU, since 1989, has been one of the main contributors to the International Fund for Ireland (IFI).
• It is also worth mentioning that the recent cessation of terrorist violence and crime has brought renewed hope to Spain, and particularly to the Basque Country.
• It is also worth mentioning that European Union support for the insulation of buildings is one of the most visible features of cohesion policy.

Some examples from the web:

• This is also worth mentioning, and very important.
• These are several tabou subjects which are, I think, also worth mentioning.
• The strengthening of deterrents should be accompanied by enhanced traceability of fisheries products, as has been highlighted by previous speakers, with eco-labelling also worth mentioning in this regard.
• We are all aware of the value of the United States' undertakings, but Canada is also worth mentioning.
• Council Decision 1999/847/CE establishing a Community action programme in the field of civil protection is also worth mentioning in this context.
• Council Decision 1999/847/CE establishing a Community action programme in the field of civil protection OJ L 327, 21.12.1999. is also worth mentioning in this context.
• I think it's also worth mentioning that one of the last people Josh was with before she lost contact with him was Pernell Harris.
• The situation in Romania is also worth mentioning, where 110 cases per 100000 inhabitants are recorded, against a European average of 39 cases per 100000.
• Moreover - and this is also worth mentioning - exempting Eurobonds from the tax arrangements, as intended or desired by several financial centres in Europe, would give the securities market a considerable advantage over other savings instruments and would substantially limit the scope of the directive.
• Also worth mentioning is that in 2007 the EU-Lebanon Action Plan came into effect.
• Also worth mentioning is that Al-Shabaab has quite limited support within Somali society, which has a rich Sufi tradition and generally against the strict implementation of the Sharia.
• Also worth mentioning is the relatively high unemployment rate in Europe, especially when compared with the USA.
• 4.1.3 Also worth mentioning is the relatively high unemployment rate in Europe, especially when compared with the USA. This situation has negative effects on Europe's competitiveness, its high overall tax burden and on the equilibrium of social welfare schemes.
• Another petition concerning the improper implementation of EC directives on environment is also worth mentioning.